From lunar samples brought back in the Apollo program, scientists have figured out that the Moon once had a shield around it called a magnetosphere, just like the Earth has today. As NASA prepares to send humans to the Moon, and eventually on to Mars, scientists are exploring the Moon's magnetic past.

Gravity Assist: When the Moon Was Like a Magnet, with Sonia Tikoo

NASA’s interplanetary talk show, hosted by former Chief Scientist Jim Green, introduces you to space professionals working to take exploration into the future.

Science

On the Gravity Assist podcast we have interviewed dozens of scientists, engineers, and others dedicated to the mission of NASA space exploration. After five years, the show is coming to a close. Here are some final thoughts and episode highlights from the podcast team.

Season 5, Episode 32: Finale: Thanks for All the Gravity Assists

Gravity Assist Finale: Thanks for All the Gravity Assists

The James Webb Space Telescope awed the world on July 12 with its first images and data. And it’s just getting started with its exploration of the cosmos. Dr. John Mather, the observatory’s senior project scientist, has been working toward this milestone for more than 25 years.

Season 5, Episode 31: Meet a Webb Scientist Who Looks Back in Time

Gravity Assist: Meet a Webb Scientist Who Looks Back in Time

The world will get a first glimpse of the universe as never before when the first images from the James Webb Space Telescope come out on July 12. And this is only the beginning — the telescope will deliver all kinds of insights about galaxies, planets, and more, for years to come.

Gravity Assist: When the Moon Was Like a Magnet, with Sonia Tikoo

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