Related topics: nasa · stars · planets · solar system

The low density of some exoplanets is confirmed

The Kepler mission and its extension, called K2, discovered thousands of exoplanets. It detected them using the transit technique, measuring the dip in light intensity whenever an orbiting planet moved across the face of ...

Name an exoplanet

In recent years, astronomers have discovered thousands of planets and planetary systems orbiting around nearby stars. Some are small and rocky like the Earth, whilst others are gas giants like Jupiter. It is now believed ...

Laboratory's solar system legacy

When the first humans stepped onto the moon a half-century ago on July 20, 1969, they knew they were venturing into the unknown. Some had feared their lander would be swallowed up by bottomless layers of dust as almost nothing ...

NEOWISE celebrates five years of asteroid data

NASA's Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) mission released its fifth year of survey data on April 11, 2019. The five years of NEOWISE data have significantly advanced scientists' knowledge of ...

Machine learning identifies links between world's oceans

Oceanographers studying the physics of the global ocean have long found themselves facing a conundrum: Fluid dynamical balances can vary greatly from point to point, rendering it difficult to make global generalizations.

Exiled planet linked to stellar flyby three million years ago

Some of the peculiar aspects of our solar system—an enveloping cloud of comets, dwarf planets in weird orbits and, if it truly exists, a possible Planet Nine far from the sun—have been linked to the close approach of ...

ESA plans mission to smallest asteroid ever visited

ESA's planet-defending Hera mission will set a new record in space. The asteroid investigator will not only be the first spacecraft to explore a binary asteroid system – the Didymos pair – but the smaller of these two ...

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