While Earth is only the fifth largest planet in the solar system, it is the only world in our solar system with liquid water on the surface. Just slightly larger than nearby Venus, Earth is the …

The brightest and largest object in our night sky, the Moon makes Earth a more livable planet by moderating our home planet's wobble on its axis, leading to a relatively stable climate. It also …

Our solar system consists of our star, the Sun, and everything bound to it by gravity – the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune; dwarf planets such as …

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The Venus flyby geometry was designed to swing the spacecraft back to Earth on December 8, 1990, for a 600-mile flyby angled to put Galileo in a two-year elliptical orbit around the Sun, …

Aug 18, 2020 · Asteroid 2020 QG enters the record books as the closest known nonimpacting asteroid; many very small asteroids impact our planet every year, but only a few have actually …

Nov 9, 2015 · The Cassini probe was designed to explore Saturn’s atmosphere, rings, magnetosphere, and moons. It has successfully found geysers on Saturn’s moon Enceladus, …

Nov 2, 2016 · If they measured precisely enough, they would find that Earth rotates once per 23.934 hours. That's Earth's rotation rate — the very definition of a day. Using the same …

Jun 8, 2017 · This graphic depicts Cassini's interplanetary route beginning with launch from Earth, followed by gravity assist flybys of Venus, Earth, and Jupiter. During each flyby, orbital …

Buckyballs found in a huge impact crater near Sudbury, Ontario came from space nearly two billion years ago, and arrived on Earth intact, a paper in tomorrow's issue of the journal …