Related topics: earth · nasa · comet · jupiter

Large asteroid to (safely) zip past Earth

The largest asteroid to pass by Earth this year will swing closest on Sunday, giving astronomers a rare chance for a good look at a space rock that formed at the dawn of our solar system.

Layers upon layers of rock in Candor Chasma on Mars

In many ways, Mars is the planet that is most similar to the Earth. The red world has polar ice caps, a nearly 24-hour rotation period (about 24 hours and 37 minutes), mountains, plains, dust storms, volcanoes, a population ...

NRL telescope onboard SOHO discovers 4000th comet

The U.S. Naval Research Laboratory's Large Angle Spectrometric Coronagraph (LASCO) instrument identified the 4000th comet discovered by the Solar and Heliospheric Observatory (SOHO), a joint mission between the European Space ...

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Amateur astronomy

Amateur astronomy, also called backyard astronomy, is a hobby whose participants enjoy watching the night sky (and the day sky too, for sunspots, eclipses, etc.), and the plethora of objects found in it, mainly with portable telescopes and binoculars. Even though scientific research is not their main goal, many amateur astronomers make a contribution to astronomy by monitoring variable stars, tracking asteroids and discovering transient objects, such as comets. Such efforts are one of the relatively few ways interested amateurs can still make useful contributions to scientific knowledge.

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