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Japan’s Hayabusa2 lands on asteroid Ryugu
The Hayabusa2 spacecraft touched down briefly and successfully on asteroid Ryugu, 200 million miles (300 million km) from Earth. It successfully fired a bullet into the asteroid to puff up dust for sample collection.
February 22, 2019
Rosetta’s comet sculpted by stress
The Rosetta space mission revealed a comet as 2 icy balls apparently stuck together billions of years ago. Now scientists say the comet's double-lobed structure guided its evolution.
February 22, 2019
IAU names Chang’e-4 landing site on moon’s far side
The Chinese spacecraft Chang’e-4 made history earlier this year, when it became the first earthly spacecraft to land on the moon's far side. Now astronomers have named its landing site.
February 22, 2019
Earth’s atmosphere extends beyond moon
In fact, these researchers said, the moon flies through Earth's outermost atmosphere, called its geocorona.
February 21, 2019
Where is the universe’s missing matter?
When astronomers add up the mass of all the normal matter in the present-day universe, about a third of it can't be found. Where is it?
February 20, 2019
A solar flare 10 billion times more powerful than sun’s
Our sun's solar flares are an incredible natural phenomenon, but now astronomers have observed a flare on a young star that almost defies belief. It's 10 billion times more powerful than any seen on our sun!
February 19, 2019
Volcanic activity under Mars’s surface?
Mars has long been thought to be a geologically dead world. Could there still be volcanic activity beneath its surface? A subsurface lake at Mars' south pole suggests that possibility.
February 17, 2019
From Chelyabinsk to Cuba: The meteor connection
The scientific team that used YouTube videos to determine the trajectory of the Chelyabinsk meteor used the same method to track the trajectory of the bright meteor that crossed the sky over Cuba on February 1.
February 15, 2019
5 things about radiation donuts, in 2 minutes
Did you know that our planet has radiation donuts? These giant, donut-shaped clouds of radiation are called the Van Allen Belts.
February 15, 2019
Mars Opportunity rover ends its mission
The Mars Opportunity rover, built to last 90 days, has ended its mission after 15 years on the red planet.
February 14, 2019
