Related topics: nasa · stars · planets · moon · solar system

Was that Santa up there? No, Soyuz rocket debris

A ball of light streaking across the night sky in northern Europe on Saturday at a time when many imagined that Father Christmas was doing his rounds was nothing more than Soyuz rocket debris, Belgian experts say.

String of satellites baffles residents, bugs astronomers

A string of lights that lobbed across the night sky in parts of the U.S. on Wednesday, Thursday and Friday had some people wondering if a fleet of UFOs was coming, but it had others— mostly amateur stargazers and professional ...

How are planets formed?

How did the Solar System's planets come to be? The leading theory is something known as the "protoplanet hypothesis", which essentially says that very small objects stuck to each other and grew bigger and bigger—big enough ...

How many moons does Earth have?

Look up into the night sky and count the moons. You can see only one moon, "the" Moon. But does the Earth have any other moons? Around the Solar System, multiple moons are the rule. Jupiter has 67 natural satellites, even ...

What we know about Jupiter

Look towards the north-west after sunset (south-west in the northern hemisphere) and there is currently one bright point of light that easily stands out relative to everything around it. That is the planet Jupiter, shining ...

New kind of aurora is not an aurora at all

Thin ribbons of purple and white light that sometimes appear in the night sky were dubbed a new type of aurora when brought to scientists' attention in 2016. But new research suggests these mysterious streams of light are ...

Milky Way now hidden from one-third of humanity

The Milky Way, the brilliant river of stars that has dominated the night sky and human imaginations since time immemorial, is but a faded memory to one third of humanity and 80 percent of Americans, according to a new global ...

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