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Category Archives: News and Updates

News about Astronomy and Space Science. Find every news item and update here, in blog format. You can get these updates sent straight to your mailbox by subscribing here, or you can subscribe to the RSS feed by clicking the link.

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Hubble spots puzzling exoplanet

Urban Astronomer avatarPosted on 12 August, 2013 by Allen Versfeld1 July, 2016

176 light years from Earth, in the constellation Hydra (the Water Serpent), lies a small young star and what appears to be a brand new planet. Recently spotted by the Hubble Space Telescope, TW Hydrae is breaking records and disrupting current theories on planetary formation, because not only is the star apparently too young to have formed planets, but the planet itself is about twelve billion kilometers from the star — twice as far out as Pluto. Of the thousands … Continue reading →

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Chandra finds 26 black holes in next-door galaxy

Urban Astronomer avatarPosted on 11 August, 2013 by Allen Versfeld

Astronomers using 13 years worth of data from the Chandra X-ray space telescope have potentially identified 26 stellar-mass black holes in the nearby Andromeda Galaxy (M31), and a further 8 in globular clusters orbiting it. The distribution of these black holes confirms theoretical predictions made years ago by scientists from the Max Planck Institute for Astrophysics. “While we are excited to find so many black holes in Andromeda, we think it’s just the tip of the iceberg,” said Robin Barnard … Continue reading →

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Carnival of Space #313

Urban Astronomer avatarPosted on 6 August, 2013 by Allen Versfeld

This week’s Carnival of Space is hosted by Pamela Hoffman of Everyday Spacer.  The carnival of space is a weekly phenomenon, passing on to a new blog each week.  The sacred duty of finding and collecting the best news on astronomy and space science from around the Internet is entrusted to each new blogger, to ensure that the reader will always have the news that matters. This week’s Carnival has some good stuff:  We learn about using interstellar X-rays to … Continue reading →

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Smallest exoplanet directly imaged

Urban Astronomer avatarPosted on 5 August, 2013 by Allen Versfeld

A team of European astronomers, working with the ESO’s Very Large Telescope (VLT), have successfully imaged an exoplanet orbiting the star HD 95086. This exoplanet is about four to five times the mass of Jupiter, making it probably the smallest object ever to be photographed outside our Solar System. The exoplanet, called HD 95086 b under standard naming conventions, orbits about twice as far from its star as Neptune is from the Sun, and the entire system is about three … Continue reading →

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Proved: Supernovae cause Cosmic Rays

Urban Astronomer avatarPosted on 31 July, 2013 by Allen Versfeld

 A century ago, scientists first discovered cosmic rays, subatomic debris which travel through the universe at relativistic speeds and which smash into our upper atmosphere with energies exceeding those of our most powerful particle accelerators. But it’s only now, thanks to a new study using observations from NASA’s Fermi gamma-ray space telescope that we know where they come from. The bulk of cosmic rays are protons, with the remainder being either electrons or atomic nuclei. Since these particles all carry … Continue reading →

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