Related topics: orbit · planets · stars · solar system

Are we being watched? Tens of other worlds could spot the Earth

A group of scientists from Queen's University Belfast and the Max Planck Institute for solar system Research in Germany have turned exoplanet-hunting on its head, in a study that instead looks at how an alien observer might ...

A catalog of habitable zone exoplanets

The last two decades have seen an explosion of detections of exoplanets, as the sensitivity to smaller planets has dramatically improved thanks especially to the Kepler mission. These discoveries have found that the frequency ...

Hubble detects 'exocomets' taking the plunge into a young star

Interstellar forecast for a nearby star: Raining comets! NASA's Hubble Space Telescope has discovered comets plunging onto the star HD 172555, which is a youthful 23 million years old and resides 95 light-years from Earth.

New insights into early terrestrial planet formation

Scientists at Tokyo Institute of Technology have demonstrated that the relatively high levels of precious metals (gold, platinum, etc.) in the Earth's mantle likely originated from one large-scale planetary impact prior to ...

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