Two of Earth’s immediate neighbours — Venus and Mars — will be coming closest to one another next week in a celestial event termed ‘planetary conjunction’.
Easily visible with the naked eye and observable only from earth, a conjunction occurs when two planets appear to have come close to each other even though they remain far away from one another.
In the latest conjunction, which is set to take place on July 13, will see Mars and Venus stay just 0.5 degrees apart (though this is quite far in the actual distance). This sight will be visible in the western sky or horizon under clear sky conditions soon after sunset.
This time, the conjunction shall also have the moon getting close and stay within 4 degrees of the two planets on the night of July 12, making it three-celestial-body conjunction.
Sky gazers and astronomy enthusiasts can begin observing the sky from Thursday and continue till Tuesday in order to observe the apparent coming closer of Mars and Venus. Continued observations thereafter will also reveal the moving-away of these planets after July 13.
Pune-based Inter-University Centre for Astronomy and Astrophysics (IUCAA) and Indian Institute of Astrophysics (IAA), Bengaluru, have invited photograph entries of the event, the best among which will be published by the institutes.
Russian lab module docks with space station after 8-day trip – Vancouver Is Awesome
MOSCOW — A newly arrived Russian science lab briefly knocked the International Space Station out of position Thursday when it accidentally fired its thrusters.
For 47 minutes, the space station lost control of its orientation when the firing occurred a few hours after docking, pushing the orbiting complex from its normal configuration. The station’s position is key for getting power from solar panels and or communications. Communications with ground controllers also blipped out twice for a few minutes.
Flight controllers regained control using thrusters on other Russian components at the station to right the ship, and it is now stable and safe, NASA said.
“We haven’t noticed any damage,” space station program manager Joel Montalbano said in a late afternoon press conference. “There was no immediate danger at anytime to the crew.”
Montalbano said the crew didn’t really feel any movement or any shaking. NASA said the station moved 45 degrees out of attitude, about one-eighth of a complete circle. The complex was never spinning, NASA spokesman Bob Jacobs said.
NASA’s human spaceflight chief Kathy Lueders called it “a pretty exciting hour.”
The incident caused NASA to postpone a repeat test flight for Boeing’s crew capsule that had been set for Friday afternoon from Florida. It will be Boeing’s second attempt to reach the 250-mile-high station before putting astronauts on board; software problems botched the first test.
Russia’s long-delayed 22-ton (20-metric-ton) lab called Nauka arrived earlier Thursday, eight days after it launched from the Russian launch facility in Baikonur, Kazakhstan.
The launch of Nauka, which will provide more room for scientific experiments and space for the crew, had been repeatedly delayed because of technical problems. It was initially scheduled to go up in 2007.
In 2013, experts found contamination in its fuel system, resulting in a long and costly replacement. Other Nauka systems also underwent modernization or repairs.
Stretching 43 feet (13 meters) long, Nauka became the first new compartment for the Russian segment of the outpost since 2010. On Monday, one of the older Russian units, the Pirs spacewalking compartment, undocked from the station to free up room for the new lab.
Nauka will require many maneuvers, including up to 11 spacewalks beginning in early September, to prepare it for operation.
The space station is currently operated by NASA astronauts Mark Vande Hei, Shane Kimbrough and Megan McArthur; Oleg Novitsky and Pyotr Dubrov of Russia’s Roscosmos space corporation; Japan Aerospace Exploration Agency astronaut Akihiko Hoshide and European Space Agency astronaut Thomas Pesquet.
In 1998, Russia launched the station’s first compartment, Zarya, which was followed in 2000 by another big piece, Zvezda, and three smaller modules in the following years. The last of them, Rassvet, arrived at the station in 2010.
Russian space officials downplayed the incident with Dmitry Rogozin, head of Roscosmos, tweeting: “All in order at the ISS. The crew is resting, which is what I advise you to do as well.”
Seth Borenstein, The Associated Press
There is contact! -Russia's new Nauka space module docks wit… – MENAFN.COM
(MENAFN – The Peninsula)
MOSCOW: Russia upgraded its capabilities on the International Space Station on Thursday after its new Nauka module, set to serve as a research lab, storage unit and airlock, successfully docked with it after a nervy journey from Earth.
A live broadcast from Russia’s space agency, Roscosmos, showed the module, a multipurpose laboratory named after the Russian word for ‘science’, docking with the ISS at 1329 GMT, a few minutes later than scheduled.
“According to telemetry data and reports from the ISS crew, the onboard systems of the station and the Nauka module are operating normally,” Roscosmos said in a statement.
“There is contact!!!” Dmitry Rogozin, the head of Roscosmos, wrote on Twitter moments after the docking.
Since it launch last week from Kazakhstan’s Baikonur Cosmodrome, the module had suffered a series of glitches that had raised concerns about whether the docking procedure would go smoothly.
Thursday’s development suggests Russia is interested in maintaining the ISS despite previous comments from Rogozin who last month suggested Moscow would withdraw from it in 2025 unless Washington lifted sanctions on the space sector that he said were hampering Russian satellite launches.
Launched in 1998, the ISS is a multinational project and comprises two segments, a Russian one and another one used by the United States and other space agencies.
“After its commissioning, the Russian segment will receive additional room for arranging workplaces, storing cargo and housing water and oxygen regeneration equipment,” Roscosmos said its statement.
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Halifax researcher part of team behind black hole discovery that proves Einstein right – Global News
A researcher at Saint Mary’s University in Halifax was part of a team of scientists that observed light coming from behind a black hole for the very first time, confirming a prediction from famous physicist Albert Einstein’s theory of general relativity.
While scientists have seen X-ray emissions around black holes before, it’s the first time light has been spotted behind a black hole – and the new discovery could lead to a better understanding of what’s still largely considered to be an astronomical mystery.
Luigi Gallo, a professor of astronomy at Saint Mary’s University who’s been studying black holes for 20 years, worked on the data analysis and interpretation for this research project, led by Stanford University astrophysicist Dan Wilkins.
“They’re my favourite objects, but I think I’m biased a bit,” Gallo said of black holes. “It’s the most extreme object in space, right? We don’t know a lot about them.”
Gallo’s research focuses on supermassive black holes – the regions in space where gravity is so strong that not even light can escape. Supermassive black holes are 10 million times larger than the sun.
Because of their very nature, black holes themselves can’t be seen. Scientists are only able to observe the objects around them.
As materials in space fall into a black hole, they form what’s called an “accretion disk,” where they spiral around before falling into the black hole.
On top of a black hole is a primary light source known as a “corona,” which illuminates the material. When the light shines onto the accretion disk, it bounces off and creates X-ray emissions or flares.
“It’s not exactly like a reflection in a mirror. What happens is that light comes back with different colours and it comes back at different times,” Gallo explained.
Proving Einstein right
What the five-person research team observed was a big flare coming from a supermassive black hole in a galaxy 800 million light-years away known as I Zwicky 1, using two space-based X-ray telescopes from NASA and the European Space Agency.
Shortly after seeing the big flare, Gallo said they observed a smaller flare in a different colour – an “echo” of the first flare.
“We were able to interpret that as light coming from the other side of the black hole,” said Gallo. “Which is really kind of cool, we haven’t ever been able to isolate exactly where light is coming from on the accretion disk … but in this instance, we’re actually able to say, ‘Oh, this light is coming from behind the black hole.’”
Shedding light on a black hole
That echo could be seen because the black hole was warping space by bending light around itself. Thus, Einstein’s century-old prediction was proven right, Gallo said.
“This is basically confirming how the space-time around a supermassive black hole is shaped,” he said.
“That’s why we can see light coming from behind the black hole, it’s because it’s taken this curved path around the black hole and landing now on us, so that we can see it … Because space is bent, which is a prediction of general relativity, we’re able to see what’s behind the black hole.”
This research, published earlier this week in Nature, opens the door a little further for scientists studying black holes.
Gallo said it will allow them to eventually draw a 3D picture of what the region around the supermassive black hole looks like. As well, he said they will continue to study “coronas” to better understand them, which was actually the driving motivation behind this discovery.
Gallo took note of the “incremental” nature of science and said there are decades of other discoveries that led them to this point.
“The telescopes that we work on get better and better with time, and the techniques that we develop get better and better,” he said.
“The discovery made today … is based on decades of work of many, many other scientists that brought us here.”
He added that it’s important to study black holes, since their formation and evolution is “tightly linked” to the formation and evolution of galaxies.
“Galaxies are stars, and then the stars are forming planets, and planets are where we are,” he said. “All this is kind of tied in understanding the origins of where we come from.
“So it is an important field of research, but it’s fun. So it’s kind of easy for me to justify doing this kind of work.”
— With a file from The Canadian Press
© 2021 Global News, a division of Corus Entertainment Inc.
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