Up, up, and away

Mark Devlin and his team behind BLAST are about to embark on another scientific adventure in Antarctica, this time measuring how stars form in our galaxy.

Lauren Hertzler

Where do comets originate?

A new technique developed by team of Penn astronomers may allow the scientists to measure radiation from celestial bodies that are only theorized to exist.

Penn Today Staff , Erica K. Brockmeier

Looking to the stars

This year's Simons Observatory Collaboration conference included a community star party that consisted of a panel, a mixer with astronomers, and stargazing.

Ali Sundermier

Detecting distant stars: Q&A with Jose Maria Diego and Jesús Vega

While observing an exploding star in a galaxy cluster billions of light-years away, two visiting scholars noticed a curious speck of light in their images. The light was from an ancient star more than 9 billion years ago, the most distant star ever detected.

Ali Sundermier

Astronomical find

Penn Libraries has acquired a rare astronomical treatise dated 1481, with unique diagrams in the margins, and original discs of parchment that turn to demonstrate the movement of the sun, moon, and planets.

Louisa Shepard

A long time ago, from an explosion far, far away

An international team of astronomers, including Penn researchers, has confirmed the discovery of the most distant supernova ever detected, a huge cosmic explosion that took place 10.5 billion years ago.

Ali Sundermier

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In the News

Smithsonian Magazine

Astronomers discover second-closest know exoplanet

The School of Arts and Sciences’ Cullen Blake weighed in on the identification of an earth-like exoplanet called Barnard’s Star b. Blake said that while the data used to locate it may be muddied by nearby stellar activity, the exoplanet has been observed enough times to be a strong planetary candidate.