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Venus : the planet second in order from the sun — Merriam-Webster   See also   OneLook


Venus is the third smallest planet in the Solar System, it is a terrestrial planet, and it is sometimes called Earth’s “sister planet” because of their similar size, mass, proximity to the Sun, and bulk composition. It is radically different from Earth in other respects. It has the densest atmosphere of the four terrestrial planets, consisting of more than 96% carbon dioxide. The atmospheric pressure at the planet’s surface is about 92 times the sea level pressure of Earth, or roughly the pressure at 900 m (3,000 ft) underwater on Earth. Even though Mercury is closer to the Sun, Venus has the hottest surface in the Solar System, with a mean temperature of 737 K (464 °C; 867 °F). Venus is shrouded by an opaque layer of highly reflective clouds of sulfuric acid, preventing its surface from being seen from Earth in light. It may have had water oceans in the past, but after these evaporated the temperature rose under a runaway greenhouse effect. Because of the lethal surface conditions, the planet is sometimes referred to as Earth’s “evil twin.” — Wikipedia

Venus (Encyclopædia Britannica)



Articles about Venus (Big Think)




Venus Resources (Staci L. Tiedeken, NASA’s Goddard Space Flight Center)
Solar System Exploration: Venus (NASA Science)

Venus, Cloudy with a Chance of Life (Planetary Society)

Venus (Eric Weisstein’s World of Astronomy, Wolfram Research)
Venus (Wolfram Alpha)




Magellan was a 1,035-kilogram (2,282 lb) robotic space probe launched by NASA of the United States, on May 4, 1989, to map the surface of Venus by using synthetic-aperture radar and to measure the planetary gravitational field. It was the first interplanetary mission to be launched from the Space Shuttle, the first one to use the Inertial Upper Stage booster, and the first spacecraft to test aerobraking as a method for circularizing its orbit. — Wikipedia

Magellan Mission (JPL, NASA)
Magellan (NASA)


DDC: 523.42 Venus (Library Thing)
Subject: Venus (Library Thing)

Subject: Venus (Open Library)

LCC: QB 621 Venus (UPenn Online Books)

LCC: QB 621 Venus (Library of Congress)
Subject: Venus (Library of Congress)

Subject: Venus (WorldCat)




All About Venus (Space Place, NASA)
Venus (Cosmos4Kids)

MERLOT: Multimedia Educational Resource for Learning and Online Teaching
OER Commons: Open Educational Resources



Mercury and Venus Section (British Astronomical Association)


Venus (JSTOR)
Venus (EurekaAlert, AAAS)
Venus (Astronomy Magazine)
Venus (Science Daily)
Venus (



Venus (


More News …

Venus News -- ScienceDaily Planet Venus News. Science articles on the planet Venus including up-to-date detailed images, related missions and more.

  • Venus had Earth-like plate tectonics billions of...
    on October 26, 2023 at 5:14 pm

    Venus, may have once had tectonic plate movements similar to those believed to have occurred on early Earth, a new study found. The finding sets up tantalizing scenarios regarding the possibility of early life on Venus, its evolutionary past and the history of the solar system.

  • Ancient, high-energy impacts could have fueled...
    on July 20, 2023 at 4:48 pm

    A team has modeled the early impact history of Venus to explain how Earth's sister planet has maintained a youthful surface despite lacking plate tectonics. The team compared the early collision histories of the two bodies and determined that Venus likely experienced higher-speed, higher-energy impacts creating a super-heated core that promoted extended volcanism and resurfaced the planet.

  • Exoplanet may reveal secrets about the edge of...
    on June 21, 2023 at 2:54 pm

    How close can a rocky planet be to a star, and still sustain water and life? A recently discovered exoplanet may be key to solving that mystery.

  • Hunting Venus 2.0: Scientists sharpen their sights
    on March 22, 2023 at 12:26 pm

    With the first paper compiling all known information about planets like Venus beyond our solar system, scientists are the closest they've ever been to finding an analog of Earth's 'twin.'

  • Evidence that Venus is volcanically active
    on March 15, 2023 at 6:39 pm

    Venus appears to have volcanic activity, according to a new research paper that offers strong evidence to answer the lingering question about whether Earth's sister planet currently has eruptions and lava flows.


Here are links to pages about closely related subjects.

Knowledge Realm


Law (Constant) Relativity
Force Gravity, Electromagnetism (Light, Color)
Matter (Microscope) Molecule, Atom (Periodic Table), Particle

Universe (Astronomical Instrument)
Galaxy Milky Way, Andromeda
Planetary System Star, Brown Dwarf, Planet, Moon

Our Neighborhood
Solar System Sun
Terrestrial Planet Mercury, Venus, Earth (Moon), Mars
Asteroid Belt Ceres, Vesta
Jovian Planet Jupiter, Saturn, Uranus, Neptune
Trans-Neptunian Object
Kuiper Belt Pluto, Haumea, Makemake
Scattered Disc Eris, Sedna, Planet X
Oort Cloud Etc. Scholz’s Star
Small Body Comet, Centaur, Asteroid


1.   The resources on this page are are organized by a classification scheme developed exclusively for Cosma.