An image of the Bubble Nebula taken by NASA’s Hubble space telescope. It’s 7,100 light years away, in the constellation Cassiopeia, and has a star 45 times the size of our sun. The bubble is formed by strong solar winds pushing interstellar gasses around. (NASA, ESA, and the Hubble Heritage Team (STScI/AURA))
Good morning, Starshine! Scroll through the universe with the most iconic images of space
As telescopes gets smarter and space voyages more adventurous, take a look at the best recent views of worlds beyond our own, and what it takes to create them.
It’s a big year for astrophysicists. In October, NASA will launch the world’s largest, most powerful observatory into space. The James Webb Space Telescope, much delayed, much redesigned, has already cost $9 billion. But when it’s been installed just beyond the Moon’s orbit, its infrared sensors will peer through interstellar gas and dust, to see deeper into space than mankind has ever been able to.
The Moon, at the speed of light, is just over a second away. The Sun is eight minutes away. As you look further into space, you’re essentially looking further back in time, seeing objects not as they are, but as they were when the light that you’re seeing first left them.
Just as, theoretically, you could be looking at stars in the sky that have long since died, NASA says the new telescope can look far enough to see what stars, galaxies and solar systems looked like in the first billion years after the Big Bang (which occurred over 13 billion years ago). Crucially, a specially developed on-board camera will beam images back in high resolution. Pics or it didn’t happen, right?
If you’ve been paying attention to the heavens, or at least astronomy news, you’ll have noticed how much clearer our views of space have become in the last few years. Until the 1990s, images of the cosmos looked like the inside of a discotheque — random pinpoints of bright light, bright blurry patches, mists of pinks, blues and purples.
Since then, space agencies and observatories have zoomed in on multicolour nebulas, starbursts, black holes, the Sun in close-up and the moons on Mars. The Hubble Telescope, launched into low-Earth orbit in 1990, has revealed the depths of the universe with better and better clarity. The New Horizons spacecraft flying by Pluto, 3 billion miles away, revealed in 2015 that the dwarf planet has a heart-shaped feature on its side.
Varun Bhalerao, assistant professor with the department of physics at IIT-Bombay and a scientist who worked on India’s first robotic telescope in 2018, says visuals are integral to the field. “Astronomy, because of its nature and scale, has no control over its experiments – we can’t fast-forward to see how the Sun might evolve. So observation is everything.”
No one’s looking through telescopes to make those observations, anymore. Complex machines, often working in tandem with dozens of others, do the peering, measuring and data-collecting instead. And as they’ve improved, so has the view. “The visualised data bridges the gap between academic knowledge and what one would see in space. It’s not unlike discovering a work of art like the Mona Lisa, and seeing a whole new world,” Bhalerao says.
This giant, gold-plated mirror panel is part of the James Webb Space Telescope. Due for deployment later this year, it will be the world’s most powerful space-viewing observatory. (NASA / JWST)
Those pictures have a history of changing life on Earth. Copernicus’s sketches indicating that it was the Sun, not the Earth, at the centre of the universe, shook the foundations of 16th-century Europe and brought about a scientific revolution. Russian cosmonaut Yuri Gagarin, the first human in space, didn’t pack a camera in his Vostok capsule in 1961. But the Apollo 8 crew, headed to the Moon in 1968, did. Their photo, Earthrise, depicting Earth peeking over the desolate lunar surface, showed us for the first time just how fragile this planet is, reminded us that it is all we have, and helped popularise the environmental movement.
SPECKS AND SPECIFICATIONS
Taking a photo in space isn’t quite a point-and-shoot affair. Even on the International Space Station, orbiting only 408 km above Earth’s surface, the Sun’s too bright, shadows too stark, and everything goes by too fast — there’s a sunrise and sunset every 90 minutes. But visiting astronauts now get mandatory training on how to operate the dozens of on-board, always-on cameras to take the best shots of a changing Earth. As a result, they’ve captured erupting volcanoes, Australia’s wildfires, snow melting off the Himalayas and coastlines as they’ve changed over time.
For objects far, far away, such as the nearest black hole — a dark something in a sea of dark nothing — it’s a waiting game. Eight telescopes across Earth collaborated to create the 2019 image of the supermassive black hole and its shadow (the dark space in the centre, the point of no return) in the centre of the galaxy, M87. And even after the pictures were taken, it took two years to collect and process them — the data was too large to transfer online.
Because everything is moving in space — rotating, revolving, exploding, expanding or collapsing — even familiar objects take time to capture. To shoot the icy, gritty rings on Saturn, our solar system’s most photogenic inhabitant, the spacecraft Cassini spent at least a decade examining them more closely. It needed to find an angle that looked straight through the rings, and take enough shots to piece together the composite of translucent arcs that we finally saw in 2018.
For scientists like Bhalerao, the images are a way to see the world outside the numbers and calibrations that typically fill an astronomer’s day. “For us, usually, seeing the data is enough to fill us with wonder — kind of like a composer who can hear the aria in their mind using only the sheet music,” he says. “But it’s quite something to see how vast the Andromeda galaxy is, or how brightly the young stars shine in the Pillars of Creation nebula. It’s a breath-taking side-effect. And it makes you wonder who we are and our relationship with the cosmos.”
SEEING HEAVEN IN YOUR VIEWFINDER
(X-ray: NASA/CXC/Univ. of West Virginia/H. Blumer; Infrared (Spitzer and Wise): NASA/JPL-CalTech/Spitzer)
1. What on Earth is a Magnetar? It’s not on Earth; it’s in space. The little purple dot right in the centre is a dense star with the most powerful magnetic field in the universe. How magnetic? About 100 million times stronger than the most powerful magnets made by humans. We only know of 31 of these, and discovered this Magnetar, known as J1818.0-1607, last year. It’s 500 years old, so probably among the youngest out there. It pulses bright and spins furiously, about 21,000 light years away. Scientists combined X-rays from the Chandra satellite telescope and infrared data from other observatories to create this composite, the first high-resolution image of J18, released on January 8, 2021.
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(NSO/AURA/NSF)
2. Who knew that our sun was a glowing mosaic up close? The Daniel K Inouye Solar Telescope in Hawaii, the world’s most powerful tool for observing the sun, started sending out test images only in January 2020. This is its best work, the highest-resolution image ever taken of the Sun from Earth. Those yellow bits (each as vast as the Indo-Gangetic plain), are hot plasma cells turbulently rising from inside the star. The dark borders indicate where plasma is cooling and sinking. The original image, if you printed it, would cover an area of 36,500 sq km – you could literally look at it for days.
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(ESA/DLR/FU Berlin)
3. A swirly side to Mars: This image was acquired a week before Christmas 2020. It looked like the red planet was getting into the festive mood too. The European Space Agency’s Mars Express probe used a high-resolution stereo camera to capture what looks like a haloed angel sinking into cappuccino foam at Mars’s watery south pole. Notice the heart on her side? It’s a dark mineral field. Mars Express has been orbiting our neighbour since 2003. This image, along with thousands of others, has helped us understand its geography better.
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(Christina Koch/NASA)
4. Star trails of a local kind: What are we looking at? Earth, in fast forward. NASA astronaut Christina Koch, on board the International Space Station, took over 200 photos in a span of six minutes in October 2019, as the ISS travelled over Namibia towards the Red Sea. This resulting time-lapse composite features both natural and artificial lights. See the thin tread marks? The yellow-and-white dotted streaks are city lights. The dark orange strips are from fires in Angola and the Democratic Republic of the Congo. White splotches are lightning storms. And the arcs are from stars in space, with a few travelling satellites thrown in.
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(ESA/Gaia/DPAC, CC BY-SA 3.0 IGO)
5. A smorgasbord of sky: With the human eye, you’ll see, at best, only half the sky, a hemisphere oriented to where you’re standing. But in December 2020, scientists compiled data from more than 1.8 billion stars to plot a 360-degree-view map of the sky. The European Space Agency’s Gaia satellite drew on the colour and brightness of stars it has observed since 2013. It’s a lot to take in at once. Bright areas indicate dense star clusters, dark patches occur where the stars are fewer and fainter. The bright strip is our Milky Way. We’re somewhere in there.
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(NASA, ESA, STScI, A. Simon (Goddard Space Flight Center), M.H. Wong (University of California, Berkeley), and the OPAL team)
6. By Jove, he’s stormy! We’ve been looking at Jupiter, the largest planet in our solar system, since at least the 7th century BCE. By 1610 CE, Galileo had used a telescope to discover four of its largest moons; we’ve since counted 79. Then sharper telescopes spotted the storm larger than Earth that forms its Great Red Spot. We’ve been flying past and sneaking peeks since 1973, but it’s only in August 2020 that the Hubble Space Telescope offered this detailed look at its atmosphere. The weather report: A new storm brewing under the Great Red Spot. Researchers are calling it Red Spot Jr. The new image also features the Jupiter moon Europa. There’ll be even better views soon. The European Space Agency’s Jupiter Icy Moon Explorer is due to launch in 2022, and NASA’s Europa Clipper mission will follow two years later.
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(NASA, ESA, J. Dalcanton, B.F. Williams, and L.C. Johnson (University of Washington), the PHAT team, and R. Gendler)
7. All the space you need: In many ways, this is the image that started it all. In January 2015, NASA released to the public its highest-quality picture, an image of our neighbouring spiral galaxy, Andromeda, 2.5 million light years away. It is massive, made up of 1.5 billion pixels. To view it without zooming out, you’d need 600 HD TV screens. The composite draws on photographs taken by the Hubble Telescope over three years, from more than 411 points, and has been helping scientists make precision studies of large spiral galaxies. There are 100 million stars in the image, any one of which could harbour planets that support life.
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(ISRO, MOM)
8. One of our own: Finally, beautiful images of space from an Indian programme. When ISRO launched its Mars Orbiter Mission in 2013, there was trepidation. Only the Soviet Union, the United States and the European Space Agency had sent voyagers to Mars – none had succeeded on their first attempt. But in 2014, our spacecraft entered the Red Planet’s orbit, making us blush with pride. On board was the Mars Colour Camera, designed to closely study the planet’s morphological features and atmospheric phenomena. It went to work immediately, beaming back these gorgeous shots in its first year. Over the years, the orbiter has set back some 1,000 images, enough for ISRO to fill an atlas. We’ve had rare glimpses of Mars’s clouds and dust; the dark side of its moon, Deimos; and as recently as July 2020, its other moon Phobos. Not bad for a mission that was expected to last only six months.
9. How a star explodes and dies: The elements that make up life on Earth come from inside the furnaces of stars and the explosions that mark their deaths. Which is why researchers are fascinated by supernovas and their remnants, and are so interested in Cassiopeia A, the debris of a starburst 11,000 light years away, which possibly exploded in 1680. Because a supernova is millions of degrees hot, their glow needs X-ray vision that Earth-based telescopes can’t manage. Thankfully, NASA’s Chandra X-ray Observatory has been orbiting Earth since 1999. Its mirrors pick up X-rays 100 times better. Chandra made 16 pointings at Cas A between 2000 and 2010. In 2017 it released this image capturing the volume and locations of silicon (red), sulphur (yellow), calcium (green) and iron (purple). The blue veins show high-energy X-ray emission. That blue outer ring is an expanding blast wave. How’s that for spectacle?
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(Event Horizon Telescope Collaboration)
10. Black holes are really donuts: Black holes are not things, but places; collapsed stars or star groups with such strong gravity that they suck in everything around them, including light. Albert Einstein theorised on their existence in 1916, but astronomers only identified one in 1971. Then, in 2017, came visuals. The Event Horizon Telescope, eight radio telescopes working across international borders, observed something unusual in the centre of the galaxy Messier87, which is 55 million light years away. It looked like a bright ring, a shape that could only be formed when light itself was being bent. A black hole. It turned out to be huge – about 6.5 billion times bigger than our sun. The telescope’s next planned target is the centre of our own galaxy, a suspiciously dark corner long said to hold a black hole too. Who knows what we’ll see.
More than 40 trillion gallons of rain drenched the Southeast United States in the last week from Hurricane Helene and a run-of-the-mill rainstorm that sloshed in ahead of it — an unheard of amount of water that has stunned experts.
That’s enough to fill the Dallas Cowboys’ stadium 51,000 times, or Lake Tahoe just once. If it was concentrated just on the state of North Carolina that much water would be 3.5 feet deep (more than 1 meter). It’s enough to fill more than 60 million Olympic-size swimming pools.
“That’s an astronomical amount of precipitation,” said Ed Clark, head of the National Oceanic and Atmospheric Administration’s National Water Center in Tuscaloosa, Alabama. “I have not seen something in my 25 years of working at the weather service that is this geographically large of an extent and the sheer volume of water that fell from the sky.”
The flood damage from the rain is apocalyptic, meteorologists said. More than 100 people are dead, according to officials.
Private meteorologist Ryan Maue, a former NOAA chief scientist, calculated the amount of rain, using precipitation measurements made in 2.5-mile-by-2.5 mile grids as measured by satellites and ground observations. He came up with 40 trillion gallons through Sunday for the eastern United States, with 20 trillion gallons of that hitting just Georgia, Tennessee, the Carolinas and Florida from Hurricane Helene.
Clark did the calculations independently and said the 40 trillion gallon figure (151 trillion liters) is about right and, if anything, conservative. Maue said maybe 1 to 2 trillion more gallons of rain had fallen, much if it in Virginia, since his calculations.
Clark, who spends much of his work on issues of shrinking western water supplies, said to put the amount of rain in perspective, it’s more than twice the combined amount of water stored by two key Colorado River basin reservoirs: Lake Powell and Lake Mead.
Several meteorologists said this was a combination of two, maybe three storm systems. Before Helene struck, rain had fallen heavily for days because a low pressure system had “cut off” from the jet stream — which moves weather systems along west to east — and stalled over the Southeast. That funneled plenty of warm water from the Gulf of Mexico. And a storm that fell just short of named status parked along North Carolina’s Atlantic coast, dumping as much as 20 inches of rain, said North Carolina state climatologist Kathie Dello.
Then add Helene, one of the largest storms in the last couple decades and one that held plenty of rain because it was young and moved fast before it hit the Appalachians, said University of Albany hurricane expert Kristen Corbosiero.
“It was not just a perfect storm, but it was a combination of multiple storms that that led to the enormous amount of rain,” Maue said. “That collected at high elevation, we’re talking 3,000 to 6000 feet. And when you drop trillions of gallons on a mountain, that has to go down.”
The fact that these storms hit the mountains made everything worse, and not just because of runoff. The interaction between the mountains and the storm systems wrings more moisture out of the air, Clark, Maue and Corbosiero said.
North Carolina weather officials said their top measurement total was 31.33 inches in the tiny town of Busick. Mount Mitchell also got more than 2 feet of rainfall.
Before 2017’s Hurricane Harvey, “I said to our colleagues, you know, I never thought in my career that we would measure rainfall in feet,” Clark said. “And after Harvey, Florence, the more isolated events in eastern Kentucky, portions of South Dakota. We’re seeing events year in and year out where we are measuring rainfall in feet.”
Storms are getting wetter as the climate change s, said Corbosiero and Dello. A basic law of physics says the air holds nearly 4% more moisture for every degree Fahrenheit warmer (7% for every degree Celsius) and the world has warmed more than 2 degrees (1.2 degrees Celsius) since pre-industrial times.
Corbosiero said meteorologists are vigorously debating how much of Helene is due to worsening climate change and how much is random.
For Dello, the “fingerprints of climate change” were clear.
“We’ve seen tropical storm impacts in western North Carolina. But these storms are wetter and these storms are warmer. And there would have been a time when a tropical storm would have been heading toward North Carolina and would have caused some rain and some damage, but not apocalyptic destruction. ”
Associated Press climate and environmental coverage receives support from several private foundations. See more about AP’s climate initiative here. The AP is solely responsible for all content.
It’s a dinosaur that roamed Alberta’s badlands more than 70 million years ago, sporting a big, bumpy, bony head the size of a baby elephant.
On Wednesday, paleontologists near Grande Prairie pulled its 272-kilogram skull from the ground.
They call it “Big Sam.”
The adult Pachyrhinosaurus is the second plant-eating dinosaur to be unearthed from a dense bonebed belonging to a herd that died together on the edge of a valley that now sits 450 kilometres northwest of Edmonton.
It didn’t die alone.
“We have hundreds of juvenile bones in the bonebed, so we know that there are many babies and some adults among all of the big adults,” Emily Bamforth, a paleontologist with the nearby Philip J. Currie Dinosaur Museum, said in an interview on the way to the dig site.
She described the horned Pachyrhinosaurus as “the smaller, older cousin of the triceratops.”
“This species of dinosaur is endemic to the Grand Prairie area, so it’s found here and nowhere else in the world. They are … kind of about the size of an Indian elephant and a rhino,” she added.
The head alone, she said, is about the size of a baby elephant.
The discovery was a long time coming.
The bonebed was first discovered by a high school teacher out for a walk about 50 years ago. It took the teacher a decade to get anyone from southern Alberta to come to take a look.
“At the time, sort of in the ’70s and ’80s, paleontology in northern Alberta was virtually unknown,” said Bamforth.
When paleontogists eventually got to the site, Bamforth said, they learned “it’s actually one of the densest dinosaur bonebeds in North America.”
“It contains about 100 to 300 bones per square metre,” she said.
Paleontologists have been at the site sporadically ever since, combing through bones belonging to turtles, dinosaurs and lizards. Sixteen years ago, they discovered a large skull of an approximately 30-year-old Pachyrhinosaurus, which is now at the museum.
About a year ago, they found the second adult: Big Sam.
Bamforth said both dinosaurs are believed to have been the elders in the herd.
“Their distinguishing feature is that, instead of having a horn on their nose like a triceratops, they had this big, bony bump called a boss. And they have big, bony bumps over their eyes as well,” she said.
“It makes them look a little strange. It’s the one dinosaur that if you find it, it’s the only possible thing it can be.”
The genders of the two adults are unknown.
Bamforth said the extraction was difficult because Big Sam was intertwined in a cluster of about 300 other bones.
The skull was found upside down, “as if the animal was lying on its back,” but was well preserved, she said.
She said the excavation process involved putting plaster on the skull and wooden planks around if for stability. From there, it was lifted out — very carefully — with a crane, and was to be shipped on a trolley to the museum for study.
“I have extracted skulls in the past. This is probably the biggest one I’ve ever done though,” said Bamforth.
“It’s pretty exciting.”
This report by The Canadian Press was first published Sept. 25, 2024.
TEL AVIV, Israel (AP) — A rare Bronze-Era jar accidentally smashed by a 4-year-old visiting a museum was back on display Wednesday after restoration experts were able to carefully piece the artifact back together.
Last month, a family from northern Israel was visiting the museum when their youngest son tipped over the jar, which smashed into pieces.
Alex Geller, the boy’s father, said his son — the youngest of three — is exceptionally curious, and that the moment he heard the crash, “please let that not be my child” was the first thought that raced through his head.
The jar has been on display at the Hecht Museum in Haifa for 35 years. It was one of the only containers of its size and from that period still complete when it was discovered.
The Bronze Age jar is one of many artifacts exhibited out in the open, part of the Hecht Museum’s vision of letting visitors explore history without glass barriers, said Inbal Rivlin, the director of the museum, which is associated with Haifa University in northern Israel.
It was likely used to hold wine or oil, and dates back to between 2200 and 1500 B.C.
Rivlin and the museum decided to turn the moment, which captured international attention, into a teaching moment, inviting the Geller family back for a special visit and hands-on activity to illustrate the restoration process.
Rivlin added that the incident provided a welcome distraction from the ongoing war in Gaza. “Well, he’s just a kid. So I think that somehow it touches the heart of the people in Israel and around the world,“ said Rivlin.
Roee Shafir, a restoration expert at the museum, said the repairs would be fairly simple, as the pieces were from a single, complete jar. Archaeologists often face the more daunting task of sifting through piles of shards from multiple objects and trying to piece them together.
Experts used 3D technology, hi-resolution videos, and special glue to painstakingly reconstruct the large jar.
Less than two weeks after it broke, the jar went back on display at the museum. The gluing process left small hairline cracks, and a few pieces are missing, but the jar’s impressive size remains.
The only noticeable difference in the exhibit was a new sign reading “please don’t touch.”
