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A supernova’s delayed reappearance could pin down how fast the universe expands 0
- From Around the Web, Space
- September 13, 2021
The catch: We have to wait until about 2037 for an answer

By David Aragorn
Black Holes May Exert Pressure, Solving Problem That Troubled Albert Einstein, Stephen Hawking 0
- From Around the Web, Space
- September 13, 2021
Researchers have found that black holes may exert pressure on their surroundings. The discovery made by a team of astronomers in the U.K. builds on a theory posited by Stephen Hawking in 1974, which suggests black holes give off thermal radiation.

By David Aragorn
Hubble Telescope Discovers How Dying White Dwarf Stars Defy Aging 0
- From Around the Web, Space
- September 9, 2021
Astronomers have discovered that dying white dwarf stars can burn nuclear fuel in their outer shells, prolonging their lives. The discovery made using the Hubble Space Telescope runs contrary to the current view of white dwarfs as just slowly cooling inert star cores.

By David Aragorn
NASA’s Planetary Radar Spots Its 1,000th Near-Earth Asteroid 0
- From Around the Web, Space
- September 9, 2021
2021 PJ1, a near-Earth asteroid between 20 and 30 m (66-98 feet) across, safely flew past Earth on August 14, 2021 at a distance of over 1.7 million km (1 million miles). The approach was historic, marking the 1,000th near-Earth asteroid to be observed by NASA’s planetary radar in just over 50 years.

By David Aragorn
Firefly’s Alpha rocket detonated by Space Force during first launch 0
- From Around the Web, Space
- September 9, 2021
The rocket nailed its liftoff, but started cartwheeling mid-air before perishing in an explosive fireball

By David Aragorn
Viruses may exist ‘elsewhere in the universe’, warns scientist 0
- From Around the Web, Space
- September 9, 2021
Prof Paul Davies suggests viruses may form vital part of ecosystems on other planets

By David Aragorn
This premature supernova was triggered by a dead star 0
- From Around the Web, Space
- September 8, 2021
When a dead star plunges into an active star, expect an explosion of astronomical proportions that isn’t supposed to happen yet.Astronomers were able to work out this stellar puzzle after tracing an unusual burst of bright radio waves in 2017.

By David Aragorn
Perseverance Cores Its First Martian Rock, NASA Says 0
- From Around the Web, Space
- September 8, 2021
The initial images captured by the Mastcam-Z instrument onboard NASA’s Perseverance rover show an intact Mars sample present in a sample tube after coring.

By David Aragorn
New ideas on what makes a planet habitable could reshape the search for life 0
- From Around the Web, Space
- September 8, 2021
Some planets in the habitable zone are not good for life, but others outside it might be

By David Aragorn
Spacewatch: James Webb telescope finally ready for launch 0
- From Around the Web, Space
- September 7, 2021
Successor to Hubble has been hit by delays and a ballooning budget since work began on it in 1996

By David Aragorn