Space

Distant ‘quasar tsunamis’ are ripping their own galaxies apart 0
- From Around the Web, Space
- March 25, 2020
The most energetic objects in the universe may be stopping the biggest galaxies from growing bigger.

By David Aragorn
Mercury’s Extreme Daytime Heat May Help It Make Its Polar Ice 0
- From Around the Web, Space
- March 25, 2020
In 2011, NASA’s MESSENGER orbiter detected signals typical of glacial ice near the poles on Mercury. The ice was dingy and lurked in permanent shadows in numerous polar craters. According to new research led by Georgia Institute of Technology researchers, the extreme heat on Mercury, where daytime temperatures reach 400 degrees Celsius (750 degrees Fahrenheit), helps make some of that ice.

By David Aragorn
Astronomers have found the edge of the Milky Way at last 0
- From Around the Web, Space
- March 24, 2020
Our galaxy spans 1.9 million light-years, a new study finds

By David Aragorn
NASA explains why weird, wheel-like blip in space images is not a UFO 0
- From Around the Web, Space, UFO News
- March 24, 2020
It might look like Deep Space Nine is visiting our solar system, but it has a scientific explanation.

By David Aragorn
Newfound Comet ATLAS is getting really bright, really fast 0
- From Around the Web, Space
- March 24, 2020
For years, amateur astronomers have been waiting for a bright, naked-eye comet to pass by Earth — and finally, such an object may have arrived.

By David Aragorn
Nasa shortlists four astrophysics missions for 2025 launch 0
- From Around the Web, Space
- March 24, 2020
Four proposals will get funds for nine months of study before two are chosen to go ahead

By David Aragorn
Japan’s asteroid-smashing probe reveals a surprisingly young space rock 0
- From Around the Web, Space
- March 21, 2020
The carbon-rich asteroid Ryugu may have come together just 10 million years or so ago.

By David Aragorn
Looking for Slope Streaks 0
- From Around the Web, Space
- March 20, 2020
Dust and sand slide down slopes on Mars in little avalanches.

By David Aragorn
Asteroid Ryugu likely link in planetary formation 0
- From Around the Web, Space
- March 19, 2020
The solar system formed approximately 4.5 billion years ago. Numerous fragments that bear witness to this early era orbit the sun as asteroids. Around three-quarters of these are carbon-rich C-type asteroids, such as 162173 Ryugu, which was the target of the Japanese Hayabusa2 mission in 2018 and 2019.

By David Aragorn
NASA Fixed Mars InSight Lander by Making It Hit Itself With Shovel 0
- From Around the Web, Space
- March 19, 2020
NASA told its InSight lander to thwack its shovel free of the Martian soil, and it worked.

By David Aragorn