Penguin finds his way home with New Zealanders

A lost emperor penguin rescued on a New Zealand beach in June 2011 was released into the wild after two months of recovery. Will he find his way home?

Top 10 tips for seeing the supernova

A cosmic explosion - a supernova - from 21 million light-years away has been in the news. To see it, find a star party and experienced observers.

Pain relievers linked to risk of pregnancy loss

Researchers say Non-aspirin pain relievers such as ibuprofen and naproxen might be linked to pregnancy loss during the first 20 weeks.

Silkworm: A workhorse busy all the time

Years of domestication have turned the silkworm into a workhorse.

Texas wildfires still burning as winds die down

The largest of the Texas wildfires - the Bastrop fire near Austin in Central Texas - is said to be 30 percent contained today.

Zoom in to star cluster NGC 2100 in Large Magellanic Cloud

A dazzling star cluster - NGC 2100 - lies in the Large Magellanic Cloud, a neighbor of the Milky Way.

See how fast wildfire spreads

The Bastrop wildfire - which is raging 30 miles east of Austin - has burned at least 600 homes and blackened 30,000 acres in the last 48 hours.

Sharper view of footprints, landing site, rover tracks on moon

New images released today by NASA show tracks from Apollo 17's lunar rover - and the last footprints left on the moon by astronauts - from the year 1972.

Ancient humans likely mixed it up

University of Arizona researchers used a simulation model to show that DNA from Homo sapiens contains pieces from ancient humans.

Richard Feynman in graphic novel by Jim Ottaviani

Jim Ottaviani spoke with EarthSky about his new book on world-famous Nobel physicist Richard Feynman, released in hardcover in late August 2011.