Mysterious quasar sequence explained

Quasars are supermassive black holes that live at the center of distant massive galaxies. They shine as the most luminous beacons in the sky across the entire electromagnetic spectrum by rapidly accreting matter into their ...

Amazon's canopy chemistry is a patchwork quilt

In many ways, plants act as chemical factories, using energy from sunlight to produce carbon-based energy and taking nutrients from the soil in order to synthesize a wide variety of products. Carnegie scientists asked the ...

Unfrozen mystery: Water reveals a new secret

Using revolutionary new techniques, a team led by Carnegie's Malcolm Guthrie has made a striking discovery about how ice behaves under pressure, changing ideas that date back almost 50 years. Their findings could alter our ...

Adults lack stem cells for making new eggs, research shows

Mammalian females ovulate periodically over their reproductive lifetimes, placing significant demands on their ovaries for egg production. Whether mammals generate new eggs in adulthood using stem cells has been a source ...

Astronomers discover new kind of supernova

(Phys.org) —Supernovae were always thought to occur in two main varieties. But a team of astronomers including Carnegie's Wendy Freedman, Mark Phillips and Eric Persson is reporting the discovery of a new type of supernova ...

Extremely rare triple quasar found

(Phys.org) —For only the second time in history, a team of scientists—including Carnegie's Michele Fumagalli—have discovered an extremely rare triple quasar system. Their work is published by Monthly Notices of the ...

First meteorite linked to Martian crust

After extensive analyses by a team of scientists led by Carl Agee at the University of New Mexico, researchers have identified a new class of Martian meteorite that likely originated from the Mars's crust. It is also the ...

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