Did You Know?

Europa shoots water into space from 125-mile-high geysers.

Jupiter's moon Europa has massive water plumes that shoot from cracks in its icy surface. These geysers are powered by tidal heating and can reach heights of 125 miles. The presence of these plumes suggests there's a liquid water ocean beneath Europa's frozen surface.

Did You Know?

The most distant human-made object is now in interstellar space.

Voyager 1, launched in 1977, became the first human-made object to enter interstellar space in 2012. It's now...

Read more: The most distant human-made object is now in interstellar space.

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Some galaxies have no dark matter.

NGC 1052-DF2 is the first galaxy discovered that appears to contain no dark matter, which challenges our understanding...

Read more: Some galaxies have no dark matter.

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There’s a planet with a surface temperature of 4,300°C, hotter than some stars.

KELT-9b is the hottest known exoplanet, with a dayside temperature hotter than many stars. It's so hot that...

Read more: There’s a planet with a surface temperature of 4,300°C, hotter than some stars.