Science
The Webb Shows Us Where Cosmic Dust Comes From
Carbon-rich cosmic dust comes from different sources and spreads out into space, where it's necessary for life and for the…
Archaeology On Mars: Preserving Artifacts of Our Expansion Into the Solar System
In 1971, the Soviet Mars 3 lander became the first spacecraft to land on Mars, though it only lasted a…
This is What it Sounds Like When the Earth’s Poles Flip
Is there something strange and alien confined deep inside the Earth? Is it trying to break free and escape into…
Add Astronaut Nutrition to the List of Barriers to Long-Duration Spaceflight
Though there are no firm plans for a crewed mission to Mars, we all know one's coming. Astronauts routinely spend…
NASA is Building Telescopes for the LISA Mission
Some of the most cataclysmic and mysterious events in the cosmos only reveal themselves by their gravitational waves. We've detected…
The Sun Has Reached Its Solar Maximum and it Could Last for One Year
For most of human history, the Sun appeared stable. It was a stoic stellar presence, going about its business fusing…
How a Nearby Supernova Left its Mark on Earth Life
When a massive star explodes as a supernova, it does more than release an extraordinary amount of energy. Supernovae explosions…
From Frozen to Sweltering: Earth’s Climate Over the Last 485 Million Years
Earth's last half-billion years were action-packed. During that time, the climate underwent many changes. There have been changes in ocean…
Io’s Volcanoes are Windows into its Hot Interior
NASA's Juno spacecraft was sent to Jupiter to study the gas giant. But its mission was extended, giving it an…
Plants Would Still Grow Well Under Alien Skies
Photosynthesis changed Earth in powerful ways. When photosynthetic organisms appeared, it led to the Great Oxygenation Event. That allowed multicellular…