Which planet has the hottest average surface temperature in the solar system?
AnswerVenus
Venus's thick carbon dioxide atmosphere traps heat, making it hotter than Mercury.
Science · Facts & stats
Venus facts & stats
7 fact-checked facts about the planet Venus and its sky appearances, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
Venus is named after the Roman goddess of what?
AnswerLove and beauty
Venus was the Roman goddess of love and beauty.
Going deeper
Venus's thick clouds are made mostly of droplets of what?
AnswerSulfuric acid
The planet is wrapped in clouds of sulfuric acid droplets.
Compared with most planets, which way does Venus spin?
AnswerBackward (retrograde)
Venus rotates in the opposite direction to most planets, so the Sun rises in the west there.
Which Soviet program made the first successful landings on Venus?
AnswerVenera
Soviet Venera probes landed on Venus and sent back data and images in the 1970s and 1980s.
Expert level
About how many Earth days does Venus take to rotate once on its axis?
Answer243
Venus spins very slowly, taking about 243 Earth days, longer than its 225-day year.
Venus's surface pressure is roughly how many times Earth's sea-level pressure?
AnswerAbout 90 times
The surface pressure on Venus is about 90 times Earth's, like being deep under the ocean.
Know these cold?Today's round is five questions like these, 20 seconds each. Your streak and level follow you to every arena.Play today's round