The Sun’s gravity holds together our Solar System, keeping planets, asteroids, meteoroids, as well as microscopic debris in orbit around it. At its core lies nuclear fusion processes which turn hydrogen into helium; all this heat makes up our star. This video from BBC Planet Earth series, hosted by David Attenborough. Volume Comparing planet sizes […]
How Many Planet Earths Could Fit Inside the Sun? Read More »
Mars is often thought of as the nearest planet that could support life, as its soil contains nutrients, there’s water locked up in ice caps, and its atmosphere offers protection from solar and cosmic radiation. But living conditions there can be harsh. Toxic soil can suffocate you and temperatures are too cold to support comfortable
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In 1969, more than 500 million Americans watched on TV as Neil Armstrong and Buzz Aldrin became the first men to set foot on the moon. Although Richard Nixon was President at that time, Lyndon Baines Johnson had advanced space exploration with great effort during his term in office. LBJ made significant investments in NASA
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An international mission to Neptune and Triton has long been overdue; such an expedition could shed more light on what these ice giants represent. Like Jupiter, Uranus and Neptune are ice giants; planets with only trace amounts of hydrogen or helium present. But unlike Jupiter, their orbital periods are short enough for missions to Uranus
