Category Archives: Astronomy News

Astronomy News

Lunar Gateway, NASA announces contractor

http://www.astronomy.com/news/2019/05/nasa-announces-contractor-for-first-stage-of-lunar-gateway?

NASA announces contractor for first stage of Lunar Gateway
Maxar Technologies will build the propulsion system of the planned Moon-orbiting space station, which will be key to NASA’s larger plan to return humans to the Moon by 2024.

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In a talk at the Florida Institute of Technology on Thursday, NASA administrator Jim Bridenstine announced that Maxar Technologies will build the first stage of NASA’s planned Lunar Gateway.

The Gateway, part of NASA’s larger Artemis program to return to the Moon, is meant to be a waystation of sorts placed in a long orbit around the Moon. It will provide a habitat for astronauts while they prepare to embark on longer missions, including Moon landings, and serve as a place to assemble the components of rockets and other equipment in space.

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Astronomy News

Dying satellite deploys a drag sail

MonSFFen may remember that I gave a presentation on the problems of space junk. Here is an example of a company doing the right thing!

https://www.bbc.com/news/science-environment-48473698

The orbital highways above the planet are set to become congested with thousands of spacecraft in the coming years, and serious efforts need to be made to tidy away redundant hardware and other space junk if collisions are to be avoided.

TechDemoSat-1 was launched in 2014 to trial a number of new in-orbit technologies but has now reached the end of its operational life.

To bring it out of the sky faster than would ordinarily be the case, it has deployed a “drag sail”.
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This large membrane will catch residual air molecules at its altitude of 635km and pull TDS-1 quickly into Earth’s atmosphere where it will burn up.

There is a lot of interest currently in “clean space” technologies.

Pictures here

Astronomy News

Solar Wind sparks “rainbow auroras”

Space Weather News for May 29, 2019
http://spaceweather.com
https://www.spaceweatheralerts.com

SOLAR WIND SPARKS “RAINBOW AURORAS”: A stream of fast-moving solar wind hit Earth’s magnetic field on May 29th, sparking rainbow-colored auroras over Canada. Solar wind effects could continue for another 24 to 48 hours as our planet passes through the broad stream of gaseous material, which is flowing from a hole in the sun’s atmosphere. Visit Spaceweather.com for updates.

Sign up for Space Weather Alerts and get an instant text message when geomagnetic storms begin.

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Above: Auroras outside Calgary, Alberta, Canada, on May 29, 2019. Photo credit: Harlan Thomas. For more sightings, check the Realtime Aurora Photo Gallery.

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Astronomy News

Auroras May 15-17

Auroras spotted as far south as the USA. Watch the skies tonight and nights of the 16th and 17th. –Cathy

NOAA forecasters have boosted the odds of geomagnetic storms this week to 75% as a series of coronal mass ejections (CMEs) approaches Earth.

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Space Weather News for May 15, 2019
http://spaceweather.com
https://www.spaceweatheralerts.com

INCREASING CHANCE OF GEOMAGNETIC STORMS: Last night, auroras were sighted in the USA as far south as Ohio. More could be in the offing. NOAA forecasters have boosted the odds of geomagnetic storms this week to 75% as a series of coronal mass ejections (CMEs) approaches Earth. The action commences on May 15th and could continue through May 17th as solar storm clouds arrive, one after another. Visit Spaceweather.com for the full story.

Sign up for Space Weather Alerts and get an instant text message the CMEs arrive.

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Above: Auroras over Clyde, Ohio, on May 14, 2019. Photo credit: Tyler Hofelich. For more sightings, check the Realtime Aurora Photo Gallery.

One must not spit the cheap 100mg viagra soft tablet after chewing it. So you have take this super cialis cheap problem seriously. It improves vigor, vitality and strength and the dose of the medicine is almost similar to the branded ones, the quality buy cialis without prescription of the drugs is not compromised. According to Johns Hopkins Medicine, SAM-e is a supplement that has not been FDA approved but is marketed as tadalafil online uk find here a treatment for depression.
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Astronomy News

Long Range sensors detect…

There is a 55% to 60% chance of geomagnetic storms on May 15th and 16th when a series of CMEs could hit Earth’s magnetic field.

Space Weather News for May 14, 2019
http://spaceweather.com
https://www.spaceweatheralerts.com

MULTIPLE CMEs ARE APPROACHING EARTH: NOAA forecasters say there is a 55% to 60% chance of geomagnetic storms on May 15th and 16th when a series of coronal mass ejections (CMEs) could hit Earth’s magnetic field. Storm levels are expected to range between category G1 and G2. This means auroras could be sighted in northern-tier US states such as Montana, Minnesota, and upstate New York. Visit Spaceweather.com for the full story.

NEW: Sign up for Space Weather Alerts and get an instant text message when geomagnetic storms begin.

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Above: This explosion on May 12th hurled a CME almost directly toward Earth. Credit: NASA/Solar Dynamics Observatory.

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Astronomy News

Event Horizon Telescope releases first-ever black hole image

From Astronomy Magazine

http://www.astronomy.com/

Event Horizon Telescope releases first-ever black hole image

After decades of theorizing about the possibility of catching a black hole image, astronomers have finally pulled it off. The results offer new insights into the mysterious objects.

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By Korey Haynes  |  Published: Wednesday, April 10, 2019
AConsensus
The first ever image of a black hole shows the supermassive black hole in the heart of galaxy M87
On Wednesday, astronomers revealed the first image ever taken of a black hole, bringing a dramatic conclusion to a decades-long effort. The iconic image offers humanity its first glimpse at the gas and debris that swirl around its event horizon, the point beyond which material disappears forever. A favorite object of science fiction has finally been made real on screen.
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The nature of M87: EHT’s look at a supermassive black hole

By directly imaging M87’s supermassive black hole and accretion disk, researchers are already learning more about the complex processes that shape the jets of active galaxies.

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Why the Event Horizon Telescope took so long to image a black hole

Scientists have finally imaged the invisible. Why did it take two decades to snap a shot of a black hole?

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How the Event Horizon Telescope imaged an invisible black hole

How scientists imaged a black hole is nearly as impressive as the picture itself.

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Astronomy News

A couple of articles involving Canadians on the ISS

A couple of articles involving Canadians on the ISS appeared in the Montreal Gazette:

  • Chris Hadfield’s famous photos from the International Space Station will soon be available to the public
  • Saint-Jacques walks in space

Chris Hadfield’s famous photos to be made public  

Montreal Gazette,

Astronaut Chris Hadfield’s famous photos from the International Space Station will soon be available to the public. Hadfield donated more than 13,000 photos to Dalhousie University in Halifax, where they will be preserved and available for educational and research purposes. Marlo MacKay of the Dalhousie Libraries says they will be available as of Thursday, when the university will hold a public launch. Hadfield took 45,000 photographs during a five-month mission commanding the ISS that ended in May 2013.

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‘A GLIMPSE OF THE FUTURE’

Saint-Jacques walks in space

  • Montreal Gazette,
  • SIDHARTHA BANERJEE

CANADIAN SPACE AGENCY/NASAAstronaut David Saint-Jacques tackled a 61/2-hour-long to-do list alongside NASA’s Anne McClain during Monday’s spacewalk at the International Space Station. Saint-Jacques is the first Canadian to perform a spacewalk since 2007.

LONGUEUIL, QUE.  Astronaut David Saint-Jacques became just the fourth Canadian to complete a spacewalk Monday, accomplishing several tasks alongside NASA astronaut Anne McClain in about six-and-a-half hours before returning inside the International Space Station.

Saint-Jacques, 49, is the first Canadian to perform a spacewalk since 2007.

After re-entering the space station, he hailed the mission as “a glimpse of the future as we venture further into space.” He said the international effort was an excellent example of collaboration.

“Because when we manage to look beyond our differences, we achieve things that seem impossible,” Saint-Jacques said. “That’s how we progress.”

McClain, who was performing her second spacewalk, thanked the ground team. “We know that it’s a lot of hard work, and a lot of big sighs of relief as soon as the hatch did get closed,” she said.

The spacewalk appeared to run like clockwork, with Saint-Jacques and McClain actually leaving the space station half-an-hour earlier than scheduled.

Retired astronaut Dave Williams said astronauts prefer to have a cushion against the unpredictability of working in space. “We like to get ahead on the timeline and stay ahead, because you never know what’s going to happen during a spacewalk,” Williams said at the Canadian Space Agency headquarters in suburban Montreal.

Williams holds the Canadian record for the most spacewalks, with three for a total of just under 18 hours outside the space station during a 2007 mission. Those came at a time when there was extensive building going on at the station.

Now, astronauts are transitioning mostly to maintenance tasks, which partly explains the long gap since the last Canadian spacewalk by Williams. The other two Canadian astronauts to have performed the feat are Steve MacLean in 2006 and Chris Hadfield in 2001.

Saint-Jacques is on his first posting to the space station, which began on Dec. 3. After emerging from the station, the Canadian performed a few brief movements to get used to his suit before diving into the to-do list, which took 6 hours, 29 minutes.

The tasks took the pair all over the station and included relocating a battery adapter plate, upgrading the station’s wireless communication system and connecting jumper cables along the midpoint of the station’s main truss to give Canadarm2 an alternative power source.

Saint-Jacques, McClain and Oleg Kononenko of the Russian space agency, Roscosmos are scheduled to return to Earth in June.

Astronomy News

The Event Horizon Telescope may soon release first-ever black hole image

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From Astronomy Magazine

 The Event Horizon Telescope may soon release first-ever black hole image

A photo of the Milky Way’s central black hole, Sagittarius A*, would be the first of its kind.

By Korey Haynes  |  Published: Tuesday, April 2, 2019
RELATED TOPICS: BLACK HOLES | GALAXIES
blackhole
While still a simulation for now, the Event Horizon Telescope has promised to image a black hole, and they’re poised to make a big announcement.Hotaka Shiokawa
No, you can’t actually take a picture of a black hole. But astronomers have promised to do the next best thing: To image the seething chaos just outside the black hole, known as its event horizon. To capture this region, just on the cusp of the black hole itself, astronomers have had to link telescopes from across the globe and focus them on the closest, most massive black holes known: Sagittarius A* (pronounced “A-star”), which resides at the center of our own Milky Way galaxy, as well as the even larger supermassive black hole that sits at the center of nearby galaxy M87.

The result, known as the Event Horizon Telescope (EHT) had its big observing run in April of 2017. Researchers warned that it would take time to piece together the data. And the team has repeatedly dropped hints that the results could be ready soon, only for the project to continue on. But based on their upcoming press event, set for April 10, it seems that time may have come, and that viewers are about to see the first-ever picture of a black hole’s event horizon.

TeamworkEHT is actually a team of telescopes working together in a process known as interferometry. This lets the connected telescopes behave as if they had one enormous collecting area. Of course, there are gaps between the individual observatories, and each telescope is unique and behaves in slightly different ways – as well as experiencing different weather, and having a different view of the black hole, though this last is actually the feature that makes the combined imaging so accurate. But figuring out how to stitch all that data together is why researchers have taken so long to turn the 2017 data into a presentable image.

But the cooperation pays off. Individually, the telescopes are world-class. And together, they deliver enough observing power that a person standing in New York City could use the EHT to read the writing on a quarter in Los Angeles, something none of them could do individually.

It’s not clear which of the black holes targeted by EHT may be ready to show off to the public. It’s also not for certain that they’ve actually accomplished the feat yet. But after such a wait, the pictures should be stunning. The National Science Foundation, which helps fund EHT, will be hosting the press conference. Due to the collaboration being spread across the globe, other press conferences will happen simultaneously in Brussels, Santiago, Shanghai, Taipei and Tokyo, highlighting the cooperation and vast resources it takes to make a project this large succeed.

The announcement will be livestreamed at the NSF’s webpage.

Astronomy News

BLOWING UP SATELLITE adds to space junk!

I gave a presentation to MonSFFA about space junk. Recently, India added to the clutter over our heads by blowing up a satellite. CPL

Space Weather News for April 3, 2019
http://spaceweather.com
https://www.spaceweatheralerts.comBLOWING UP SATELLITES DURING SOLAR MINIMUM: Last week, India conducted an anti-satellite weapons test, shattering Microsat-R into more than 6,500 pieces. Circling Earth like tiny bullets, some of those fragments are now potentially threatening the International Space Station. Read today’s edition of Spaceweather.com to find out why conducting anti-satellite tests during Solar Minimum can be a terrible idea.

NEW: Sign up for Space Weather Alerts and get an instant text message when geomagnetic storms are underway.

[] 
Above: A computer simulation of the March 27th ASAT test created by Analytical Graphics Inc.

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Astronomy News

Apollo 11 moon landing models

On July 20, 2019, MonSFFA will be celebrating the 50th anniversary of the Apollo 11 moon landing.

If you’ve got a few bucks to spend, you can buy these models from the Astronomy Magazine science shop. The model of the capsule is very expensive, the others very affordable.

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Apollo 11 Capsule Model
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