Nasa has announced that it hasn't found aliens on one of Jupiter's moons.

The space agency has revealed that it has found "surprising activity" on Europa.

But before people could get too excited about the discover, they tweeted to confirm that it was "not aliens" they'd found.

Instead the research seems to show "surprising evidence of activity that may be related to the presence of a subsurface ocean on Europa".

Details of exactly what their findings are will be revealed in a press conference later.

People's excitement over the potential for life on Europa is not totally unfounded.

In a study written about it earlier this year, Nasa said one line of research into conditions in Europa's oceans suggested that "the necessary balance of chemical energy for life could exist there".

Scientists "strongly believe" the moon may hide a "deep ocean of salty liquid water" underneath its icy shell.

Jupiter has 52 named moons, according to Nasa, but scientists have discovered more.

Another 14 have been found, but they have yet to be officially named.

The planet's four largest moons are Ganymede, Callisto, Io and Europa.

Find us on Instagram at BBCNewsbeat and follow us on Snapchat, search for bbc_newsbeat