RTG fit and test

What can you see in the April sky? The Moon visits Mars in the evening, and later joins Saturn and Jupiter for a spot of tea. Also, how to find Polaris, the North Star.

On Earth, the ocean floor is home to hydrothermal vents that spout hot water, nourishing life in an otherwise inhospitable environment. Scientists think similar vents could exist on other worlds.

Edward Stone describes how he was always interested in what was new as a young man and how space physics got his attention.

This animated movie shows the simulated solar wind velocity from March 21 to May 10, 2013. 

This movie shows a quick succession of multiple products of Titan's surface from the Cassini orbiter and the European Space Agency's Huygens probe.

Animations, interviews and mission b-roll available for download.

Ion propulsion isn’t something found only in science fiction. JPL engineer Mike Meacham looks at how ion engines are being used to drive NASA's Dawn spacecraft through the solar system.

This is a computer simulation of the final stage of the growth of a "clump" in Saturn's rings.

These false-color mosaics from NASA's Cassini spacecraft chronicle the changing appearance of the huge storm that developed from a small spot in Saturn's northern hemisphere.

Ring World Highlights  

A curated just-for-kids NASA video playlist. 

January 2021 skywatching highlights: Begin the new year with "perihelion," then catch a glimpse of elusive Uranus and Mercury later in the month.

This movie from Cassini, made possible only as Saturn's north pole emerged from winter darkness, shows new details of a jet stream that follows a hexagon-shaped path and has long puzzled scientists.

On Jan. 22, 2012, the Sun erupted with a solar flare, a coronal mass ejection, and a burst of highly energetic protons known as solar energetic particles.

Since the 1960’s, scientists have suspected that frozen water could survive in cold, dark craters at the Moon’s poles. 

Rosaly Lopes shares how she was inspired to help the exploration of space and how that lead to her role as a planetary scientist.

NASA's twin GRAIL spacecraft have new names, thanks to some enthusiastic 4th graders from Montana, who reveal the names in dramatic fashion.

Have you ever seen a meteorite streaking across the sky? If so, you may very well have seen part of the asteroid, Vesta!

Great Red Spot

To prepare the new Perseverance rover for its big day on Mars, NASA’s Mars 2020 mission team conducted a wide array of tests to ensure a successful entry, descent, and landing at the Red Planet.

An overview video of the OSIRIS-REx mission.

Io in Eclipse

The flight over Charon begins high over the hemisphere New Horizons saw on its closest approach, then descends over the deep, wide canyon of Serenity Chasma. 

Lloyd French talks about the adventures that await in science and in life.

This video uses data gathered from the Lunar Reconnaissance Orbiter spacecraft to recreate some of the stunning views of the Moon that the Apollo 13 astronauts saw on their perilous journey around ...