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The sun emitted 3 mid-level solar flares on July 22-23, 2016. This is what NASA’s Solar Dynamics Observatory saw.
There’s a curious lack of big craters on the dwarf planet Ceres, largest body in the asteroid belt between Mars and Jupiter. Why?
A 1,600-foot (500-meter) dish called FAST – in southwest China – is now the world’s largest radio telescope. It’s expected to be fully operational in September.
Most Unidentified Flying Objects aren’t unidentified at all. Here’s a list of natural and human-made objects in the sky that people frequently mistake for UFOs.
Scientists had suspected that mountains on Venus affected weather patterns seen rippling across Venus’ cloudtops. A new study provides evidence of this connection.
Watch a full year of Earth’s sunlit side, seen from a million miles away by the DSCOVR spacecraft.
Computer models, and observations of our galaxy and others, suggested a Milky Way X, made of stars. An analysis of data from the WISE space telescope reveals it.
Mare Imbrium basin on the moon – the Man in the Moon’s right eye – might have been made by a protoplanet-sized impact, 3.8 billion years ago.
40th anniversary of the first fully successful soft landing on Mars’ surface, by the Viking 1 spacecraft. First images from Mars’ surface, here.
Today is the 47th anniversary of humanity’s historic first steps on the moon. The story in pictures, here.
Ophiuchus is part of the zodiac, too
Milky Way over Sun Valley, Idaho