Astronomers using NASA’s Hubble Space Telescope have measured the rotation rate of an extreme exoplanet by observing the varied brightness in its atmosphere. This is the first measurement of the ...

Tracking the rotation speed of solid planets, like the Earth and Mars, is a relatively simple task: Just measure the time it takes for a surface feature to roll into view again. But giant gas planets ...

Imagine a massive celestial body colliding with Uranus at high speed; this impact could have 'overturned' Uranus, causing its ...

A planet's year length depends on its distance from the Sun. Planets closer to the Sun have shorter years. A planet's rotation speed is unrelated to its year length. Planets' orbital speeds vary ...

FARGO — Our planet Earth is tilted. That is to say, its axis of daily rotation is tilted about 23 and a half degrees from its axis of revolution around the sun. It is this tilt that gives us seasons.

Can a movement many feet below our feet quietly change the Earth’s rotation? Over 3,000 miles below the ground, the Earth’s inner solid core a ball of iron and nickel whose temperature is as hot as ...

While Earth spins in the same direction as the sun, that's not the case for every planet in the solar system. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

Add this to Mars’ long list of mysteries. NASA’s now defunct InSight Mars Lander has produced data that indicates that the red planet’s rotation rate, the rate at which it spins on its axis, is ...

As atmospheric observations of exoplanets become increasingly precise, it is more important than ever to correctly account ...