For over two centuries, we have watched the red giant R Leonis dim and brighten with regularity, but this ‘heartbeat’ is beginning to speed up near the end of the star’s life.
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“The surprise that a supposedly quiet, discless system could drive such a spectacular nebula was one of those rare ‘wow’ moments.”
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This new NASA Hubble Space Telescope image captures a jet of gas from a forming star shooting across the dark expanse. The bright pink and green patches running diagonally through the image are HH 80/81, a pair of Herbig-Haro (HH) objects previously observed by Hubble in 1995. The patch to the upper left is part […]
A new NASA spacecraft called Pandora is awaiting launch ahead of its journey to study the atmospheres of exoplanets, or worlds beyond our solar system, and their stars. Along for the ride are two shoebox-sized satellites called BlackCAT (Black Hole Coded Aperture Telescope) and SPARCS (Star-Planet Activity Research CubeSat), as NASA innovates with ambitious science […]
Using new observations from the Hubble Space Telescope and observatories on Earth, scientists have confirmed the existence of Betelgeuse’s elusive companion star, named Siwarha.
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“This is a tale of a failed galaxy.”
Using new observations from NASA’s Hubble Space Telescope and ground-based observatories, astronomers tracked the influence of a recently discovered companion star, Siwarha, on the gas around Betelgeuse. The research, from scientists at the Center for Astrophysics | Harvard & Smithsonian (CfA), reveals a trail of dense gas swirling through Betelgeuse’s vast, extended atmosphere, shedding light […]
The Westerlund 2 star cluster is home to some of the Milky Way’s brightest stars.