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Tag: “minor planet”

This illustration shows the possible surface of TRAPPIST-1f, one of the newly discovered planets in the TRAPPIST-1 system. (NASA/JPL-Caltech)

Exoplanet Bonanza; Good Sleep = Less Stress; Help Find Planet 9

February 23, 2017

7 Earth-Like Planets Found Orbiting Single Star Scientists using NASA’s Spitzer Space Telescope have found the largest group of earth-like planets circling a single star. A total of seven planets were observed orbiting TRAPPIST-1, a star located only about 40 light years from Earth. The discovery also set a record for the number of planets that were […]

Scientists with NASA's Dawn mission were surprised to find that Ceres has no clear signs of truly giant impact basins. This image shows both visible (left) and topographic (right) mapping data from Dawn. (NASA/JPL-Caltech/SwRI)

Where are Ceres Large Craters?

July 27, 2016

After NASA’s Dawn spacecraft had passed by the asteroid Vesta, on its way to rendezvous with Ceres, mission scientists noticed that its surface was banged up with a lot of very large craters.  Its biggest impact crater is Rheasilvia, which measures 505 km in diameter. They expected that Ceres would also be seriously pitted with giant impact basins too. […]

NASA’s Dawn Spacecraft Begins Approach to Dwarf Planet Ceres

January 2, 2015

NASA’s Dawn spacecraft is getting set for the final segment of its planned ten-year mission after entering the approach phase of its visit to the dwarf planet Ceres. This dwarf planet, with an average diameter of 950 kilometers, is the largest object in the asteroid belt, a region of space located between the orbits of […]

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