Every once in a while, something will appear in the sky that will attract the attention of even those who normally don’t bother looking up.
It’s likely to be that way in the evening hours of Wednesday (Dec. 7) when the full moon will appear in very close proximity to the now-brilliant planet Mars. In fact, the moon will turn full at 11:08 p.m. EST (0408 GMT on Dec. 8) followed by Mars arriving at opposition to the sun just 87 minutes later. This will result in an almost perfect alignment in space of the sun, Earth, moon and Mars.
People, who are unaware or have no advance notice, will almost certainly wonder, as they cast a casual glance toward our nearest neighbor in space on this first Wednesday in December, just what is that “bright orange-yellow light”? Sometimes, such occasions bring with them a sudden rash of phone calls to radio and television stations, local planetariums, weather offices and police precincts. Not a few of these calls excitedly inquire about “the mysterious UFO” that’s closely hovering in the vicinity of our natural satellite!
If you don’t live in any of the locations listed below that will provide a good chance to see the event in person, you’re in luck: The Virtual Telescope Project will be hosting a livestream of Mars at opposition (opens in new tab) beginning at 11:00 p.m. EST on Dec. 7 (0400 GMT on Dec. 8).
Joe Rao is a veteran meteorologist and eclipse chaser who also serves as an instructor and guest lecturer at New York’s Hayden Planetarium.
Where to see the moon eclipse Mars
As a bonus, those who are located north and west of a line running roughly from Piedras Negras, Mexico to Louisville, Kentucky to Seabrook, New Hampshire will see the moon occult Mars. Refer to the US map. Those positioned south and east of this line, however, will see the moon miss the planet entirely, barely passing just above it (called an appulse).
But for an observer fortuitously positioned exactly on, or immediately adjacent to that line — it’s actually a narrow path about 21 miles (34 km) wide — the lower limb of the moon will appear to literally graze Mars as it passes by.
For those fortuitously situated along the northern edge of the path, the planet’s dazzling topaz disk may appear to disappear completely, then reappear intermittently in lunar valleys. In contrast, along the southern edge of the path, Mars’ northern edge will only briefly touch the limb of the moon.
Among towns and cities located within the path are Morgantown, WV; Scranton, PA; Hudson, NY; Northampton, MA; Lowell, MA and Seabrook, NH. Refer to the Mars occultation graze path maps.
Unlike a star which is a pinpoint of light and would disappear and reappear in an instant, Mars appears as a small disk in telescopes; owing to its relatively large angular size (17.2 arc seconds in diameter), the occultation will occur at a rather “leisurely” pace. So the disappearance of Mars behind the moon’s bright limb for most places, will take anywhere from about 40 seconds to almost a minute (or even longer where the moon’s limb approaches it at a slant).
From Austin, for instance, the moon’s slow eastward drift will take more than two minutes to completely cover, and later uncover the planet’s disk — and even longer for those to the south and closer in to the northern limit of the graze path, where the moon’s limb will approach at even more of a slant.
The planet’s reappearance will also be gradual. The actual term is called an occultation (Latin for “hiding”). One might even refer to this upcoming event as an eclipse of the planet Mars. Moving to the east against the background stars at its own apparent diameter each hour, the moon will appear to approach Mars from the west (right) and ultimately pass in front of it, and then shortly thereafter, uncover it, and leaving it behind as the moon continues to move to the east.
Plainly visible with just your eyes
An opportunity to see the moon occult a bright planet at night does not happen too often; for Mars for a specific location on Earth it happens (on average) once about every 14 years. So, if you are fortunate to live in the occultation zone and the weather gods cooperate, this upcoming event is one that really should not be missed.
Since Mars will be at opposition when it has its lunar rendezvous, it will be shining at its very brightest for this current apparition. Normally, even a bright star can be quite difficult to see when in such close proximity to the dazzling brilliance of a full moon. Yet, because Mars is as bright as it is (magnitude -1.9; nearly twice as bright as Sirius, the brightest star), this spectacular vanishing act can be watched with just your unaided eye or binoculars, although the very best views will certainly be afforded with a telescope.
Table 1 provides the specific details for 27 selected cities in the United States and Canada. For times with an asterisk (*), the calendar date is Dec. 8.
Swipe to scroll horizontally
Table 1: Local viewing circumstances for the occultation of mars, Dec. 7-8, 2022
Location
Time zone
Mars disappears
Mars reappears
Juneau
AKST
6:19 p.m.
6:55 p.m.
Los Angeles
PST
6:30 p.m.
7:30 p.m.
San Francisco
PST
6:34 p.m.
7:35 p.m.
Seattle
PST
6:51 p.m.
7:50 p.m.
Vancouver
PST
6:55 p.m.
7:52 p.m.
Tucson
MST
7:32 p.m.
8:27 p.m.
Las Vegas
MST
7:34 p.m.
8:35 p.m.
Salt Lake City
MST
7:41 p.m.
8:46 p.m.
Denver
MST
7:44 p.m.
8:48 p.m.
Helena
MST
7:51 p.m.
8:56 p.m.
Edmonton
MST
8:04 p.m.
9:06 p.m.
Yellowknife
MST
8:23 p.m.
9:16 p.m.
Whitehorse
MST
8:25 p.m.
8:57 p.m.
Tulsa
CST
8:54 p.m.
9:41 p.m.
Kansas City
CST
8:56 p.m.
9:52 p.m.
Austin
CST
8:57 p.m.
9:12 p.m.
Saskatoon
CST
9:03 p.m.
10:10 p.m.
Winnipeg
CST
9:05 p.m.
10:16 p.m.
Chicago
CST
9:10 p.m.
10:04 a.m.
Memphis
CST
9:14 p.m.
9:29 p.m.
Churchill
CST
9:22 p.m.
10:31 p.m.
Louisville
EST
10:21 p.m.
10:47 p.m.
Toronto
EST
10:29 p.m.
11:17 p.m.
Montreal
EST
10:40 p.m.
11:29 p.m.
Quebec City
EST
10:45 p.m.
11:36 p.m.
Halifax
AST
12:15 a.m.*
12:33 a.m.*
Gander
NST
12:47 a.m.*
1:37 a.m.*
The above table gives civil times of Mars’ disappearance and reappearance from behind the moon. Both the disappearance and reappearance of the planet, can last anywhere from 40 seconds to over two minutes, depending on whether Mars passes centrally behind the moon (and is covered for an hour or more) or near its lower edge at a slant (and is covered for less than a half hour). Disappearance and reappearance times are for Mars’ center.
For the rest of North America, this will be an exceedingly close approach of the moon to Mars (called an appulse). The moon, moving around the Earth in an easterly direction at roughly its own diameter each hour will seem to creep slowly toward and ultimately pass just above the ochre planet. Even though the heavily populated Southeast and Eastern United States will miss out on an occultation, Mars will almost command people to look at it, as it slowly appears to glide below the moon.
For places like Huntsville, Knoxville, Philadelphia and New York, Mars will come to within just 1 arc minute of the moon’s limb; they’ll almost seem to touch each other. To the naked eye, Mars will look like an amber jewel on the bottom edge of the moon. From Boston the gap between Mars and the moon’s limb is even smaller: just 0.6 arc minute, roughly equal to the apparent width of two Mars diameters!
After closest approach, the moon will move slowly away from Mars through the balance of the overnight hours of Dec. 7 and Dec. 8.
Table 2 provides the specific details for 15 selected cities in the continental U.S., Puerto Rico and Bermuda. For times with an asterisk (*), the calendar date is Dec. 8.
Swipe to scroll horizontally
Table 2: Local viewing circumstances for the appulse of the moon and mars, Dec. 7 and Dec. 8, 2022
Location
Time zone
Closest approach
Separation
New Orleans
EST
9:11 p.m.
3 arc min.
Huntsville
EST
9:23 p.m.
1 arc min.
Miami
EST
10:16 p.m.
11 arc min.
Jacksonville
EST
10:23 p.m.
7 arc min.
Atlanta
EST
10:26 p.m.
3 arc min.
Columbia
EST
10:31 p.m.
4 arc min.
Knoxville
EST
10:31 p.m.
1 arc min.
Charlotte
EST
10:36 p.m.
3 arc min.
Norfolk
EST
10:46 p.m.
4 arc min.
Washington
EST
10:46 p.m.
2 arc min.
Philadelphia
EST
10:51 p.m.
1 arc min.
New York
EST
10:56 p.m.
1 arc min.
Boston
EST
11:01 p.m.
0.6 arc min.
San Juan
AST
11:51 p.m.
23 arc min.
Hamilton
AST
12:06 a.m.*
11 arc min.
The above table gives civil times (all a.m.) of Mars’s closest approach to the edge of the moon’s lower limb. Separation between Mars and the moon’s lower edge is given in terms of minutes of arc (the apparent width of the moon on Dec. 7 is 30 arc minutes).
Example: From Jacksonville, closest approach is 10:23 p.m. EST, the separation is listed at 7 arc minutes or fractionally roughly 1/4 of the moon’s width will separate Mars from the moon’s lower edge.
Europe too! And after 2022, your next opportunity
Europeans will also be able to partake in this occultation, although for them this event will occur during the predawn morning hours of Thursday (Dec. 8) with the moon descending the west-northwest sky. For Lisbon, Mars will disappear behind the moon at 4:28 a.m. local time and will reappear at 5:02 a.m. For Dublin it’s 4:55 a.m. and 5:56 a.m. London: 5:00 a.m. and 5:59 a.m. Berlin: 6:01 a.m. and 6:56 a.m. Paris: 6:04 a.m. and 7:02 a.m., and Madrid 6:21 a.m. and 7:07 a.m.
The next favorable occultation of Mars for North America will take place on January 14, 2025. at around 4h UT. The moon will be a waning gibbous about 6 hours past full. Mars comes to opposition just two days later.
Joe Rao serves as an instructor and guest lecturer at New York’s Hayden Planetarium (opens in new tab). He writes about astronomy for Natural History magazine (opens in new tab), the Farmers’ Almanac (opens in new tab) and other publications. Follow us on Twitter @Spacedotcom (opens in new tab) and on Facebook (opens in new tab).
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.”