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A Mars-sized exoplanet, like Mercury inside
Astronomers have found a nearby, blazing hot, Mars-sized exoplanet. It's like Mercury in composition and orbits its star in only 7.7 hours.
December 20, 2021
Seeking Europa’s water plumes with Clipper
Are Europa's water plumes real? NASA's Europa Clipper will launch in 2024 to visit this moon to answer this and other questions about its subsurface ocean.
December 19, 2021
Parker Solar Probe: 1st spacecraft to touch sun
The Parker Solar Probe is the 1st spacecraft to touch the sun. It did so in April of 2021 when it entered the sun's corona and sampled the atmosphere there.
December 16, 2021
5 weird things that happen in outer space
Here are 5 weird things that happen in outer space: the state of plasma, extreme temperatures, cosmic alchemy, magnetic explosions and supersonic shocks.
December 16, 2021
Dark matter missing from 6 galaxies
Astronomers completed a 40-hour long observation of an ultra-diffuse dwarf galaxy and discovered no traces of dark matter.
December 15, 2021
Hundreds of new exoplanets from Kepler data
Scientists have found hundreds of new exoplanets in data from the Kepler mission. These include 301 new confirmed exoplanets and 366 new planetary candidates.
December 13, 2021
$5-billion asteroid Nereus flies by December 11
Asteroid Nereus will pass Earth at about 10 lunar distances on December 11, 2021. Scientists will study it. Its potential value is $5 billion in precious metals.
December 10, 2021
‘Mystery hut’ on the far side of the moon
China's Yutu 2 rover in the Von Kármán crater on the far side of the moon has spotted a roughly cube-shaped object on the horizon. What is Yutu 2's 'mystery hut'?
December 10, 2021
M87’s jet has a double-helix structure
M87's jet - a black-hole-powerd stream of sub-atomic particles - streaming outward some 8,000 light-years, traveling at near-light-speed. Also, it's corkscrew-shaped!
December 9, 2021
Asteroid impact monitoring system goes live
The asteroid impact monitoring system Sentry-II is analyzing near-Earth asteroids to look for ones that could intersect with Earth's orbit.
December 7, 2021
