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Editors of EarthSky
A giant relic of a disrupted tadpole galaxy
The tail of the "tadpole" is some 500,000 light-years long. If it were at the distance of the Andromeda galaxy - about 2.5 million light years from Earth - it would reach a fifth of the way to our own Milky Way.
December 4, 2018
Astronomers’ 1st close-up look near a supermassive black hole
For the 1st time, researchers have been able to observe the motion of gas clouds around a central supermassive black hole. This particular black hole powers the famous quasar 3C 273.
December 3, 2018
NASA hears MarCO CubeSats loud and clear from Mars
After cruising along behind NASA's InSight for 7 months, the 2 briefcase-sized spacecraft successfully relayed data back down to Earth from Insight during its descent to the Martian surface on Monday, November 26.
November 27, 2018
For arid, Mars-like desert, rain brings death
When rains fell on the arid Atacama Desert, it was reasonable to expect floral blooms to follow. But a team of astrobiologists has found that the water brought death instead.
November 22, 2018
Does eating turkey make you sleepy?
"I'm sleepy because turkey is high in tryptophan." True? Or myth?
November 22, 2018
Captive killer whales share personality traits with humans and chimps
Killer whales share some personality traits with humans and chimps - such as playfulness, independence, stubbornness, bravery, sensitivity and protectiveness - according to a new study.
November 18, 2018
Gaia spots enormous ghost galaxy on Milky Way’s outskirts
Gaia satellite data revealed the galaxy, which has avoided detection until now, thanks to its extremely low density and hiding place behind the shroud of the Milky Way’s disk.
November 16, 2018
Here are 6 reasons to study asteroids and comets
First, asteroids can serve as pit stops - and provide resources - for future space exploration. Second, some asteroids or comets may be hazards to Earth.
November 14, 2018
Synchronized telescopes put limits on mystery bursts
A technological tango between 2 telescopes in the Australian outback has added an important piece to the puzzle of fast radio bursts.
November 11, 2018
Astronomers find largest-yet galaxy proto-supercluster
Astronomers have identified a gigantic proto-supercluster of galaxies forming in the early universe, just 2.3 billion years after the Big Bang.
November 9, 2018
