Astronomers have discovered the fastest-orbiting asteroid that orbits the Sun in just 113 days. Known as 2021 PH27, the asteroid has the shortest known orbital period and the second shortest for any object in our Solar System after Mercury.
Discovered by Carnegie’s Scott S. Sheppard in evening twilight images taken by Brown University’s Ian Dell’Antonio and Shenming Fu, the asteroid is about 1 kilometer in size. It is found to be in an unstable orbit that crosses that of Mercury and Venus.
Can the World's First Space Sweeper Make a Dent in Orbiting Debris?
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Decades of space exploration have left a shroud of space junk enveloping Earth.
“It's probably the one of the most important environmental problems of our time,” says Hugh Lewis, an astronautical engineer at the University of Southampton in the United Kingdom.
To combat this issue, Astroscale Inc., a private Japan-headquartered company, has devised several commercial spacecrafts tasked with decluttering space.
China announces plans for 1km-long orbiting spaceship in latest twist in space race with US
A HUGE spaceship up to 1km long could be built by China as the country's space agency is working on a plan for the build.
The National Natural Science Foundation revealed a four year programme is in place to try and work out if they could build such a large ship in orbit.
Shouldn't we be orbiting a red dwarf? | astrobites
The author of this work aims to improve on the somewhat problematic framing of previous studies, which computed probabilities without considering the variable abundance of planets and habitability around different star types.
The authors make note of a few caveats for each outcome.
Deployable Tether For De-Orbiting Satellites Demo’d By Millennium Space Systems Using
Dragracer is the first, direct comparison of a drag tape on two identical satellites. The satellite, outfitted with a 70 m Terminator Tape ® developed by Tethers Unlimited , burned upon reentry to Earth’s atmosphere after eight months.
The Terminator Tape® creates additional surface area that interacts with the Earth’s atmosphere to create drag, which draws satellites back to Earth faster. The tape is deployed with a simple mechanism when a satellite is ready to de-orbit.
Nasa astronaut shares aurora time-lapse while orbiting over SA [watch]
Satellites Spot Oceans Aglow With Trillions of Organisms - The New York Times
The Greeks and Romans knew of luminous sea creatures as well as the more general phenomenon of seawater that can light up in bluish-green colors.
Charles Darwin, as he sailed near South America on a dark night aboard the H.M.S. Beagle, encountered luminescent waves. He called it "a wonderful and most beautiful spectacle.
SpaceX Dragon is launching big science haul to space station for astronaut health, plant stress
The robotic flight, called CRS-23, marks the 23rd mission for SpaceX under its commercial cargo resupply services contract with NASA. The launch is scheduled for 3:37 a.m.
"We're really excited to partner with SpaceX for this mission," Joel Montalbano, NASA's ISS program manager said Friday (Aug. 27) during a prelaunch news conference.
Happening on Twitter
"It's full of stars!" Some 25 million stars can be seen in this Hubble panorama of Messier 33. No wonder astronomer… https://t.co/MYWueB81Do HubbleTelescope Fri Aug 27 14:40:04 +0000 2021
What does "black hole spin" mean, and how do astronomers measure it? https://t.co/7TeMbM6cJo AlbertEinstein Thu Aug 26 18:11:00 +0000 2021
A new class of exoplanet very different to our own, but which could support life, has been identified by astronomer… https://t.co/WM36A3yM0A SETIInstitute (from Mountain View, CA) Thu Aug 26 23:16:03 +0000 2021
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