11:35
NASA Once Again Delays Artemis Crewed Missions To the Moon
With this week’s delays to Artemis II and III, astronauts likely won’t walk on the moon until 2026 at the earliest.
33:06
How Close Are We To Answers About Aliens?
Dr. Adam Frank discusses the human fascination with extraterrestrial life—and the scientific search for it—in his new book.
Are We Alone? Science Searches For Aliens
From biosignatures in exoplanet atmospheres to radio telescope arrays, science is searching for extraterrestrial life.
12:07
Solar Activity Flares Up In 2024
Look out for a total solar eclipse, more solar flares, and the Parker Solar Probe’s closest approach to the sun.
8:35
To Get Ready For Mars, NASA Studies How The Body Changes In Space
Spending time in space affects everything from eyesight to bone health. NASA’s CIPHER program will measure these changes and more.
The Best Of Science Friday, 2023
This year science reached new frontiers, and our coverage followed suit. Our staff—and audience—share their favorite SciFri creations of 2023.
12:16
Scientists Report Second Highest-Energy Cosmic Ray Ever Detected
Powerful cosmic rays like the “Amaterasu” particle are typically caused by celestial events. This one’s source is unknown.
Geminid Meteor Shower Peaks On Wednesday And Thursday
You could see more than 100 meteors per hour during the moonless night of December 13-14.
33:33
The (Not So) Easy Guide To Getting To Space
In a new book, astronaut Mike Massimino reflects on his time in space, and what it taught him about succeeding on Earth.
Speak Up! And Other Lessons Learned From Being An Astronaut
A former NASA astronaut reflects on his career and what it taught him about overcoming steep challenges.