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Category Archives: Astronomy and space

Galaxy cluster collision revives “radio phoenix”

The collision of two massive galaxy clusters 1.6 billion light years from Earth revived a radio source in a fading cloud of electrons, creating a “radio phoenix.” The phenomenon was recorded by a team of astronomers including William Dawson of …
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Neutrinos leave mark on early universe

Much of the time, popular stories about science emphasize the broader impact, the implications for the field, what it might mean for our lives. But in reality, science is often about finding that some detail of the universe works the …
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Warm winters can help wildfire recovery, as long as there’s enough rain

By Kat Kerlin Using more than a decade’s worth of daily satellite images, researchers have determined ecosystems of South Africa’s Cape Floristic Region bounce back from wildfires much more quickly in warmer winter weather. However, there is an important caveat …
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NSF funds NetSage to analyze, improve international data networks

Every day, thousands of researchers rely on robust data networks to share petabytes of data with their colleagues around the world. A new $5 million, five-year National Science Foundation grant, awarded to Indiana University, the University of California, Davis and …
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Cosmic collisions wake up snoozing galaxies

Galaxies are often found grouped into clusters, which contain many ‘red and dead’ members that stopped forming stars in the distant past. Now astronomers have found that when galaxy clusters collide, the resulting shockwave can “wake up” these dormant galaxies …
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First stone laid for Large Synoptic Survey Telescope (LSST)

A new map of the heavens took a big step forward last week as scientists and dignitaries, including Chilean President Michelle Bachelet, laid the first stone for the Large Synoptic Survey Telescope on the 8900-foot summit of Cerro Pachón in …
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Cosmic lens splits supernova into four images

Astronomers using NASA’s Hubble Space Telescope have for the first time spotted four images of the same distant exploding star, arranged in an “Einstein’s Cross,” a cross-shape pattern created by the powerful gravity of a foreground galaxy embedded in a …
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Core work: Iron vapor gives clues to formation of Earth and Moon

By Kat Kerlin Recreating the violent conditions of Earth’s formation, scientists are learning more about how iron vaporizes and how this iron rain affected the formation of the Earth and Moon. The study is published March 2 in Nature Geoscience. …
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Diamonds and other treasures found in Sutter’s Mill meteorite

By Kat Kerlin Researchers digging deeper into the origins of the Sutter’s Mill meteorite, which exploded over California’s Gold Country in 2012, have found diamonds and other “treasures” that provide important new insight into the early days of our solar …
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Making oxygen before life

About one-fifth of the Earth’s atmosphere is oxygen, pumped out by green plants as a result of photosynthesis and used by most living things on the planet to keep our metabolisms running. But before the first photosynthesizing organisms appeared about …
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