The Secrets of the Best Rainbows on Earth

Rainbows are some of the most spectacular optical phenomena in the natural world and Hawai’i has an amazing abundance of them. In a new publication, an atmospheric scientist at the University of Hawai’i at Mānoa makes an impassioned case for Hawaii being the best place on Earth to experience the wonder of rainbows. He begins […]

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Hubble Uncovers Concentration of Small Black Holes

Astronomers found something they weren’t expecting at the heart of the globular cluster NGC 6397: a concentration of smaller black holes lurking there instead of one massive black hole. Globular clusters are extremely dense stellar systems, which host stars that are closely packed together. These systems are also typically very old — the globular cluster […]

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New Galaxy Sheds Light on How Stars Form

Detailed observations of molecular gas in a tidal dwarf galaxy have important implications for our understanding of how stars are formed. A lot is known about galaxies. We know, for instance, that the stars within them are shaped from a blend of old star dust and molecules suspended in gas. What remains a mystery, however, […]

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Spectacular Fossil Discovery: 150 Million-year-old Shark One of Largest of its Time

In a new study, an international research team led by Sebastian Stumpf from the University of Vienna describes an exceptionally well-preserved skeleton of the ancient shark Asteracanthus. This extremely rare fossil find comes from the famous Solnhofen limestones in Bavaria, which was formed in a tropical-subtropical lagoon landscape during the Late Jurassic, about 150 million […]

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