8 results for “atmosphere”
Planets & the Solar System
Mercury and Venus
atmosphere can produce utterly different fates from similar beginnings. Mercury: the scorched messenger Mercury is the smallest
Article · 3 min read
Planets & the Solar System
Uranus and Neptune
atmospheres are hydrogen and helium, like the gas giants, but the resemblance ends there. Beneath the clouds
Article · 4 min read
Planets & the Solar System
Mars
atmosphere. What went wrong was size. A small planet cools fast; Mars's core stopped generating
Article · 4 min read
Planets & the Solar System
The Sun
atmosphere and heats it to about 15 million degrees. Under those conditions hydrogen nuclei, which normally
Article · 4 min read
Planets & the Solar System
Jupiter
atmosphere of hydrogen and helium, the same ingredients as the Sun, with traces of methane, ammonia
Article · 3 min read
Planets & the Solar System
Comets, Asteroids and Pluto
atmosphere, on a world at minus 230 degrees. Its surface is young in places, meaning something
Article · 4 min read
Planets & the Solar System
Saturn
atmosphere. It is mostly nitrogen, like ours, but half again as dense, and laced with methane
Article · 4 min read
Planets & the Solar System
The Moon
atmosphere and no weather, so nothing erases its scars. Every impact for four billion years is still
Article · 4 min read
