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A new measurement of the Hubble Constant agrees with a previous estimate from last year.

The seasons will change once again on Saturday, Sept. 22.

Boys tend to take a more impulsive approach to math problems in the classroom, which might help them get ahead of girls in the long-run.

Women in a new study who were most successful at losing weight had three healthy habits.

The series highlights the incredible creatures that inhabit North and South America.

Asteroid 2012 JU never posed any threat, NASA says.

An experiment with lizards shows that running speed maxes out in mid-size animals.

This newly awakened volcano is keeping officials wary.

If you think pandas are cute, check out these adorable photos.

Tornadoes ripped through Missouri, Kansas and Illinois

Snowflake Gallery: No Two Alike, of Course

Future rover missions might be able to detect these signatures, if they exist.

Astronomers have solved the mystery of how the first documented supernova occurred.

Differences in the expression of microRNAs between men and women may account for survival differences between the sexes.

Increasing your daily intake of "white fruits," such as apples, pears and bananas, may lower your risk of stroke, a new study shows.

This is a hot one!

This isolated island is home to amazing creatures that live nowhere else on Earth.

Today's Earth news headlines and links.

Geronimo was the code name for Osama bin Laden during the recent raid that lead to his death. The real Geronimo was a fearless Apache warrior.

The amount of dry ice on at the south pole of Mars could fill Lake Superior in the United States.

Scientists fly over Antarctic ice in plane to monitor melt.

Could damage important Gulf fisheries.

Selected moments from the production of The Next Step with Richard Hart.