AAVSO Alert Notice 519: Nova Sgr 2015 No. 2 Fading as Dust Production Rises
AAVSO Alert Notice 519 Nova Sgr 2015 No. 2 fading as dust production rises June 15, 2015 Nova Sgr 2015 No. 2 (PNV J18365700-2855420; see AAVSO…
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Hubble Telescope Detects ‘Sunscreen’ Layer on Distant Planet
Researchers using NASA’s Hubble Space Telescope have detected a stratosphere and temperature inversion in the atmosphere of a planet several times the mass of Jupiter, called…
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Giant Halo Detected Around Andromeda Galaxy by Hubble
Scientists using NASA’s Hubble Space Telescope have discovered that the immense halo of gas enveloping the Andromeda galaxy, our nearest massive galactic neighbor, is about six…
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Celebrating 25 Years of the Hubble Space Telescope Unveiling the Universe
Launched in 1990, NASA’s Hubble Space Telescope has made more than 1.2 million observations of more than 38,000 celestial objects. In its 25-year lifetime the telescope…
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The Cosmos Seems to Be Awash With Water
As NASA missions explore our solar system and search for new worlds, they are finding water in surprising places. Water is but one piece of our…
Read the articleAAVSO Alert Notice 513: Request for Observations of GW Lib in Support of HST Observations
AAVSO Alert Notice 513 Request for observations of GW Lib in support of HST observations March 18, 2015 Dr. Paula Szkody, University of Washington, has requested…
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Hubble Source Catalog: A New Master Catalog for Astronomers
Astronomers at the Space Telescope Science Institute and the Johns Hopkins University, both in Baltimore, Maryland, have created a new master catalog of astronomical objects called…
Read the articleAAVSO Alert Notice 511: Monitoring Requested for Developing Planetary Systems Dust Production Study
AAVSO Alert Notice 511 Monitoring requested for developing planetary systems dust production study March 14, 2015 Dr. George Rieke (University of Arizona) and colleagues have requested…
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The Twisted Shockwaves of the Veil Nebula
Discovered on 5 September 1784 by astronomer William Herschel, the Veil Nebula was once a star. Now it is a twisted mass of shock waves that…
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The Furious Winds From Black Holes
NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) and ESA’s (European Space Agency) XMM-Newton telescope are showing that fierce winds from a supermassive black hole blow outward in…
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