Many scientists have long thought that developing planets should resemble the swirling disk of gas and dust that births them.

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

While our solar system is a fascinating place on its own, exoplanets are even more of a mystery. And one exoplanet in particular is something quite new.

A new theory suggests windows of opportunity, not a series of improbable events may have helped humans gain a foothold in the ...

Humanity may not be extraordinary but rather the natural evolutionary outcome for our planet and likely others, according to ...

A new study rewrites the story of human evolution, suggesting that intelligent life is not rare but a natural planetary ...

The Sun sets differently on Mars. Part of that is due to its distance from the star (an average of 142 million miles versus ...

Nearly one third of known exoplanets are enormous gas giants, similar to Jupiter or Saturn. But whereas our solar system developed with gas giants far from our sun, some planetary systems consist of ...

Furthermore, analyzing the starlight passing through the atmosphere of a planet can tell researchers the composition of that atmosphere. This is possible because elements absorb light at different ...