MESSENGER Saw a Meteoroid Strike Mercury

Telescopes have captured meteoroids hitting the Moon and several spacecraft imaged Comet Shoemaker–Levy 9 smacking into Jupiter in 1994. But…

3 years ago

What is the Average Surface Temperature of Mercury?

Because of its extremely eccentric orbit, slow rotation, and lack of an atmosphere, Mercury experiences extreme variations in surface temperature.

7 years ago

How High is Space?

Where our atmosphere ends and space begins has been the subject of debate for some time. But thanks to decades…

8 years ago

What Is The Atmosphere Like On Other Planets?

The Solar System's planets have varied and interesting atmospheres, ranging from incredibly thin exospheres to ones that could literally crush…

9 years ago

Saturn’s “Wispy” Moon Has An Oxygen Atmosphere

[/caption] There's oxygen around Dione, a research team led by scientists at New Mexico's Los Alamos National Laboratory announced on…

12 years ago


[/caption] The Earth's atmosphere is broken up into several distinct layers. We live down in the troposphere, where the atmosphere…

15 years ago

Atmosphere Layers

[/caption] Seen from space, the Earth's atmosphere is incredibly thin, like a slight haze around the planet. But the atmosphere…

15 years ago