Our solar system is our immediate cosmic neighborhood. We know it well: the sun at the center; then the rocky planets Mercury, Venus, Earth, and Mars; and then the asteroid belt; followed by the gas giants Jupiter and Saturn; ...
Planetary Sciences
Jul 31, 2024
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NASA's DART mission—Double Asteroid Redirection Test—was humanity's first real-world planetary defense mission.
Astronomy
Jul 31, 2024
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In studying data collected from NASA's DART (Double Asteroid Redirection Test) mission, which in 2022 sent a spacecraft to intentionally collide with the asteroid moonlet Dimorphos, the mission's science team has discovered ...
Astronomy
Jul 30, 2024
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179
Thirty years ago, on 16 July 1994, astronomers watched in awe as the first of many pieces of the Shoemaker-Levy 9 comet slammed into Jupiter with incredible force. The event sparked intense interest in the field of planetary ...
Planetary Sciences
Jul 19, 2024
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60
In a discreet vacuumed-packed container inside a FedEx box lies a piece of ancient history; extremely ancient history.
Planetary Sciences
Jul 16, 2024
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Apart from the sun, its planets and their moons, our solar system has vast amounts of space rocks—fragments left over from the formation of the inner planets.
Planetary Sciences
Jul 16, 2024
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1
Up to 60% of near-Earth objects could be dark comets, mysterious asteroids that orbit the sun in our solar system that likely contain or previously contained ice and could have been one route for delivering water to Earth, ...
Planetary Sciences
Jul 10, 2024
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Asteroids, sometimes called minor planets or planetoids, are small Solar System bodies in orbit around the Sun, especially in the inner Solar System; they are smaller than planets but larger than meteoroids. The term "asteroid" has historically been applied primarily to bodies in the inner Solar System since the outer Solar System was poorly known when it came into common usage. The distinction between asteroids and comets is made on visual appearance: Comets show a perceptible coma while asteroids do not.
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