HS-ESS1-6
Apply scientific reasoning and evidence from ancient Earth materials, meteorites, and other planetary surfaces to construct an account of Earth's formation and early history.
- Planets
Saturn’s moon Enceladus wears a thick blanket of snow
Pits on the frosty moon reveal the snow’s surprising depth, up to 700 meters (2,300 feet) in some places.
- Physics
Scientists Say: Fission
Nuclear fission is the process of splitting atoms apart to release huge amounts of energy.
- Earth
Fossil-fuel use is confusing some carbon-dating measurements
Carbon-14 dating of recent artifacts will soon give scientists confusing results. That’s another price society pays for its reliance on fossil fuels.
- Physics
Explainer: Radioactive dating helps solve mysteries
Knowing the decay rate of radioactive elements can help date ancient fossils and other artifacts.
- Space
NASA is readying to send humans back to the moon
The launch of NASA's Artemis I is a huge step toward sending humans back to the moon and beyond.
- Planets
Mars might still be volcanically active, quakes there suggest
Seismic rumblings picked up by NASA’s InSight lander hint at molten rock moving deep below the planet’s fractured surface.
- Physics
Cosmic timeline: What’s happened since the Big Bang
Energy, mass and the cosmos' structure evolved a lot over the past 13.82 billion years — much of it within just the first second.
- Physics
It all started with the Big Bang — and then what happened?
Scientists explain what really puzzles them about how our universe became what it is today — and what its future may hold.
- Physics
Mysteries about the universe abound, from its beginning to its end
Scientists have a good understanding of the laws that make our universe tick. But they still don’t quite know how it began — or will end.
- Tech
NASA’s DART spacecraft crashed into an asteroid — on purpose
This mission could provide a blueprint for how to deflect a killer asteroid, if one is ever found headed for Earth.
- Earth
Not one, but two asteroids might have ended the age of dinosaurs
A craterlike structure found off the coast of West Africa might have been formed by an asteroid that struck around the time dinosaurs went extinct.
- Physics
Let’s learn about gravitational waves
Gravitational waves offer scientists a new way to view extreme objects such as black holes and neutron stars.
