NASA ScienceCasts

Earth is surrounded by electrons that can be disruptive to our technology. NASA is using high-altitude balloons and spacecraft to monitor and understand these particles in the radiation belts surrounding our planet.

A new NASA-funded tool is taking some of the ‘wild’ out of wildfires by making it possible for U.S. fire managers to better spot dangerous blazes.

Astronomers have long hoped to find another planet in the cosmos similar to Earth--a blue dot in the distance that could harbor life akin to our own. NASA's Kepler spacecraft may have found the next best thing.

Many astronauts report a blurring of their eyesight in microgravity. Researchers are trying to get to the bottom of this phenomenon before astronauts travel to Mars and beyond.

During an unprecedented 1-year mission to the International Space Station, scientists are studying how astronauts' bodies respond to long-duration space travel

The Fine Motor Skills experiment on the station is looking at how long-duration microgravity effects fine motor task performance

NASA's Cassini Spacecraft is about to make a daring plunge through one of the plumes emerging from Saturn's moon Enceladus.

Look east before sunrise in late October for a beautiful conjunction of bright planets.

The ESA/NASA Solar and Heliospheric Observatory has discovered more than 3000 doomed comets that have passed close to the sun.

Astronomers using NASA’s Hubble Space Telescope have discovered an immense cloud of hydrogen evaporating from a Neptune-sized planet named GJ 436b.