The similarities are astonishing. And yet... The post NASA Telescope Discovers Nearby Planet With Deep Similarities to Earth ...

A closer look at the planets around a star called LHS 1903 may just flip our understanding of how planetary systems form.

Last year, the night sky provided us with not one but two beautiful planetary parades. The snag for the six-planet parade of August is that it happened before dawn. Very inconsiderate for those of us ...

Every once in a while, the mechanics of our solar system grant Earth and its residents a better-than-average view, as is the ...

A newly identified planet candidate, HD 137010 b, looks strikingly Earth-like in size and orbit — but it may be colder than Mars due to its dimmer star. If it has a thick enough atmosphere, though, ...

A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, scientists say.

Gas giants are massive worlds made mostly of hydrogen and helium. They lack solid surfaces, and in our solar system, Jupiter ...

This month, skywatchers can enjoy a rare celestial event known as a "planetary parade," featuring six planets- Mercury, Venus ...

Relatedly, astronomers may have just pushed the upper size limit of what counts as a planet.

Stargazers, get ready for a celestial show! A planetary alignment featuring six planets will be visible in late February and ...

This year will offer skywatchers several occasions to wonder at the marvel above us, according to the Old Farmer's Almanac.

If you're looking to take your stargazing experience a notch higher, consider investing in binoculars or a small telescope. These tools can help you see more details on planets or the moon's surface.