Because Earth moves in an elliptical orbit around the sun, being further away means it travels slower along its orbit. This ...

The awe-inspiring distances of the cosmos are hard to visualise, so how can we be certain we are measuring them correctly?

Look for them around 10 p.m. local daylight time, roughly one-quarter up in the western sky. In addition to their closeness ...

YOUNGSTOWN, Ohio (WKBN) – If you have thought that the Earth is close to the sun in the summertime and that is why it is ...

By discovering carbonate rocks, NASA's Mars rovers may have unlocked the key to understanding the fate of the Red Planet's ...

Pluto, whose distance from the sun varies from 2.8 to 4.5 billion miles, is even more eccentric at 0.244. On the other hand, our home planet has an eccentricity of only 0.017.

Discover why Earth's farthest distance from the sun coincides with summer heat, then grab your binoculars for a week of ...

It only takes a few minutes to get to space! Rockets hit the boundary of space, approximately 100 km above Earth, in around 8 ...

As the sun grew hotter, so did Mars, prompting much of its atmospheric carbon dioxide to rain out and ultimately get locked up in rocks.

New research shows how Mars may have undone its own habitability, while Earth stayed stable enough to support life.