Amazing views of Jupiter over the years via the Hubble Space Telescope. The moons of Io, Ganymede and hazy Uranus can be observed.

Two heads are better than one, as the saying goes, and sometimes two instruments, ingeniously recombined, can accomplish feats that neither could have done on its own.

For the first time, the US military shared an orbital selfie from its mysterious X-37B space plane, which captured Earth from ...

A planetary alignment happens when planets “line up” on the same side of the sun. The phenomenon is visible this month ...

Experience Virgin Galactic Unity's Galactic 02 flight with these amazing views from inside and out of suborbital space plane ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

Planet ‘parades’ are not uncommon. While occasionally spotting 4-5 planets is not unusual, sighting the alignment of all 7 ...

Non-mixing layers of water and hydrocarbons thousands of miles deep could explain the icy planets’ strange magnetic fields.