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  2. Venus - Wikipedia

    en.wikipedia.org/wiki/Venus

    Venus has a diameter of 12,103.6 km (7,520.8 mi)—only 638.4 km (396.7 mi) less than Earth's—and its mass is 81.5% of Earth's, making it the third-smallest planet in the Solar System. Conditions on the Venusian surface differ radically from those on Earth because its dense atmosphere is 96.5% carbon dioxide, with most of the remaining 3.5% ...

  3. List of smallest exoplanets - Wikipedia

    en.wikipedia.org/wiki/List_of_smallest_exoplanets

    The sizes are listed in units of Earth radii (R 🜨). All planets listed are smaller than Earth and Venus , up to 0.7 Earth radii . The NASA Exoplanet Archive is used as the main data source.

  4. Why isn’t Venus like Earth? New space mission aims to find out

    www.aol.com/space-missions-probe-mysteries-venus...

    Venus is similar in size and distance from the sun when compared with Earth, and some researchers believe the planet might have even had an Earth-like climate at some point.

  5. List of Solar System objects by size - Wikipedia

    en.wikipedia.org/wiki/List_of_Solar_System...

    These lists contain the Sun, the planets, dwarf planets, many of the larger small Solar System bodies (which includes the asteroids), all named natural satellites, and a number of smaller objects of historical or scientific interest, such as comets and near-Earth objects.

  6. Inferior and superior planets - Wikipedia

    en.wikipedia.org/wiki/Inferior_and_superior_planets

    "Inferior planet" refers to Mercury and Venus, which are closer to the Sun than Earth is. "Superior planet" refers to Mars, Jupiter, Saturn, Uranus, and Neptune (the latter two added later), which are further from the Sun than Earth is. The terms are sometimes used more generally; for example, Earth is an inferior planet relative to Mars.

  7. Geology of solar terrestrial planets - Wikipedia

    en.wikipedia.org/wiki/Geology_of_solar...

    Overall, Venus has several times as many volcanoes as Earth, and it possesses some 167 giant volcanoes that are over 100 kilometres (62 mi) across. The only volcanic complex of this size on Earth is the Big Island of Hawaii. However, this is not because Venus is more volcanically active than Earth, but because its crust is older.

  8. List of planet types - Wikipedia

    en.wikipedia.org/wiki/List_of_planet_types

    Super-Earth: An extrasolar planet with a mass higher than Earth's, but substantially below the mass of the Solar System's smaller gas giants Uranus and Neptune, which are 14.5 and 17.1 Earth masses respectively. Kepler-10b: Sub-Earth: A classification of planets "substantially less massive" than Earth and Venus. Mercury

  9. Venus was once like Earth until climate disaster turned it ...

    www.aol.com/news/venus-was-once-like-earth-until...

    Venus was once a habitable planet with liquid water on its surface.