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This sequence is compiled from a series of images taken on July 25 by the Transiting Exoplanet Survey Satellite. The angular extent of the widest field of view is six degrees. Visible in the images are the comet C/2018 N1, asteroids, variable stars, asteroids and reflected light from Mars. TESS is expected to find thousands of planets around other nearby stars. Credit: Massachusetts Institute of Technology/NASA’s Goddard Space Flight Center

NASA’s planet-hunting TESS catches a comet before starting science

Before NASA's Transiting Exoplanet Survey Satellite (TESS) science activities on July 25, 2018, the planet hunter sent back a dazzling grouping of fortunate pictures...
This illustration shows how scientists used data from NASA's WISE spacecraft to determine the nucleus sizes of comets. They subtracted a model of how dust and gas behave in comets in order to obtain the core size. Credits: NASA/JPL-Caltech

Scientists Found Seven Times More Massive Comets in Our Solar System

A team led by researchers at NASA's Jet Propulsion Laboratory have recently found more large comets in our Solar System. Scientists describing them as massive icy wanderers. Scientists...