87 results

Stellar Science

3-D Mapping of Large Magellanic Cloud

A team of astronomers has assembled the first fully three-dimensional view of stellar motions in a nearby galaxy.

Solar System

A Meteorite Lights up the Lunar Night

Astronomers have witnessed the largest lunar impact to date. With an impact energy equivalent to 15 tons of TNT — approximately 3 times as great as the previous record-holder — the flash was visible even to the naked-eye.

Stellar Science

The Purest Star Tells an Ancient Tale

Astronomers have discovered the purest star to date. Composed almost exclusively of hydrogen and helium — with 15 million times less iron than our Sun — it illuminates what happened among the first supernovae in the early universe.

Astronomy & Observing News

Hot White Dwarfs Show Planet Debris

Both hot and cool white dwarf stars can display the remains of destroyed planets polluting their atmospheres. There now appear to be two routes for this material to make its way in.

Solar System

Unveiling Ganymede

Get an eyeful of the solar system’s largest moon — a world of ancient, crater-packed plains and broad swaths of younger grooved terrain that defies easy explanation.

Solar System

Curiosity Navigates the Crossroads

NASA’s Mars Science Laboratory — Curiosity — has successfully crossed a sand dune standing between the rover and its final science destination.

Solar System

Shedding Light on Circumbinary Systems

Astronomers are beginning to understand the unlikely formation and dangerous survival of exoplanets circling binary stars.

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