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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
What is space weather?
Activity on the sun’s surface creates the conditions known as space weather, that can, at its worst, damage Earth satellites and cause electrical blackouts.
November 15, 2018
At last, a planet for Barnard’s Star
Astronomers are "99 percent confident" that this exoplanet is real and not a false detection. The planet for Barnard's star - 2nd closest star system to our sun - appears to be a cold super-Earth.
November 14, 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
Wow! Amazing timelapse of Beta Pictoris b
Not long ago, we couldn't see planets orbiting distant stars at all. Now astronomers have captured the passage of exoplanet Beta Pictoris b into the glare of its star … then its re-emergence 2 years later.
November 12, 2018
How did Earth get its water?
For decades, scientists have said that at least some of Earth's water came from comets and asteroids. New research suggests an even more primordial source, the vast cloud in space from which our world formed.
November 12, 2018
Awesome new Jupiter close-up
This new Juno spacecraft image shows magnificent swirling clouds in Jupiter's dynamic atmosphere. The craft was about 4,400 miles (7,000 km) from the planet's cloud tops on October 29, over about 40 degrees north.
November 11, 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
Did natural batteries create Mars’ organic carbon?
Earlier in 2018, the Curiosity rover found evidence for abundant organic compounds - those containing carbon - on Mars. Does this mean Mars once had life? Or can some other process can explain it? Here's one idea.
November 9, 2018
