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Two X-flares, and two radio blackouts, Friday
The sun was very active on Friday! It released two X-flares, the most powerful kind of solar flares, causing two temporary radio blackouts.
October 25, 2013
A glimpse of the violent past of Milky Way’s giant black hole
A new study shows that the Milky Way's supermassive black hole had at least two major outbursts in the last few centuries.
October 25, 2013
Another close sweep by asteroid due in 2065
Russian astronomers recently discovered an asteroid that will sweep closely past Earth in 2032. Now they've announced another object that'll sweep closely past in 2065.
October 25, 2013
The coldest place in the universe
Astronomers say the Boomerang Nebula is the coldest place in the universe at one degree Kelvin (minus 458 degrees Fahrenheit). It's even colder than background space.
October 24, 2013
Our Milky Way galaxy wobbles
Our home galaxy, the Milky Way, makes small wobbling movements. Possible causes include the passage of a smaller galaxy through our own.
October 24, 2013
The most distant galaxy yet
It's the most distant, and therefore the earliest, yet discovered. It's seen as it was just 700 million years after the Big Bang.
October 23, 2013
View from space: Russian missile contrail
Two astronauts' photos of the contrail from a Russian missile launch
October 23, 2013
Doomsday in 2032 from asteroid 2013 TV135? Not likely
Asteroid 2013 TV135 is big. But it's not likely to hit us.
October 22, 2013
1,000 days of the sun in three minutes
Watch three years of solar activity in three minutes, in this NASA video.
October 21, 2013
See the penumbral eclipse of the Hunter’s Moon on October 18-19
You're more likely to see the eclipse from Europe or Africa than from North America. As seen from eastern North America, the eclipse will be ongoing at moonrise Friday evening.
October 17, 2013
