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Mystery of Galaxy's Missing Dark Matter Deepens

Hubble tracks down fast radio bursts to galaxies' spiral arms

 E-Mail IMAGE: Astronomers using the Hubble Space Telescope have tracked down two brief, powerful radio bursts to the spiral arms of the two galaxies shown above. The two images at left show. view more  Credit: SCIENCE: NASA, ESA, Alexandra Mannings (UC Santa Cruz), Wen-fai Fong (Northwestern) IMAGE PROCESSING: Alyssa Pagan (STScI) Astronomers using NASA s Hubble Space Telescope have traced the locations of five brief, powerful radio blasts to the spiral arms of five distant galaxies. Called fast radio bursts (FRBs), these extraordinary events generate as much energy in a thousandth of a second as the Sun does in a year. Because these transient radio pulses disappear in much less than the blink of an eye, researchers have had a hard time tracking down where they come from, much less determining what kind of object or objects is causing them. Therefore, most of the time, astronomers don t know exactly where to look.

Hubble watches how a giant planet grows

 E-Mail IMAGE: This illustration of the newly forming exoplanet PDS 70b shows how material may be falling onto the giant world as it builds up mass. By employing Hubble s ultraviolet light (UV). view more  Credit: Credits: NASA, ESA, STScI, Joseph Olmsted (STScI) NASA s Hubble Space Telescope is giving astronomers a rare look at a Jupiter-sized, still-forming planet that is feeding off material surrounding a young star. We just don t know very much about how giant planets grow, said Brendan Bowler of the University of Texas at Austin. This planetary system gives us the first opportunity to witness material falling onto a planet. Our results open up a new area for this research.

Hubble captures giant star on the edge of destruction

 E-Mail IMAGE: In celebration of the 31st anniversary of the launching of NASA s Hubble Space Telescope, astronomers aimed the renowned observatory at a brilliant celebrity star, one of the brightest stars seen. view more  Credit: NASA, ESA, STScI In celebration of the 31st anniversary of the launching of NASA s Hubble Space Telescope, astronomers aimed the renowned observatory at a brilliant celebrity star, one of the brightest stars seen in our galaxy, surrounded by a glowing halo of gas and dust. The price for the monster star s opulence is living on the edge. The star, called AG Carinae, is waging a tug-of-war between gravity and radiation to avoid self-destruction.

Hubble spots double quasars in merging galaxies