For decades, scientists have tried to uncover the cause of long-term changes in Earth’s biodiversity. New simulations point at geography playing a critical role.
The Earth’s magnetic field deflects particles emitted by the Sun.
Mark Garlick/Science Photo Library via Getty Images
Ever seen the northern lights? You have a magnetic layer in Earth’s atmosphere to thank for those beautiful displays. But the magnetosphere does a lot more than create auroras.
The restored image of Earthrise. A high quality black and white image was coloured using hues from the original colour photos.
Image Credit: NASA, Apollo 8 Crew, Bill Anders; Processing and License: Jim Weigang
Upcoming NASA missions will help scientists understand the composition of asteroids – which could inform companies one day hoping to commercially mine asteroids.
Earth and Moon as seen by the Galileo spacecraft from a distance of 6 million km away.
NASA
Earth’s orbits are getting more and more crowded. To keep track of everything and avoid collisions and catastrophes, we need a new field: space domain awareness.
Studying the sample could help answer how water arrived on Earth and how life started.
A man works his way through the rubble of buildings in Marrakesh, Morocco, after a magnitude 6.8 earthquake on Sept. 8, 2023.
Fadel Senna/AFP via Getty Images
Treaties meant to ensure sustainability in space don’t currently regulate private companies, and not every country has signed on to an agreement for sustainable space exploration.
A coronal mass ejection on the solar surface.
(NASA/GSFC/SDO)
We’re currently a few years into the 25th studied solar cycle. An 11-year period of sun activity, this solar cycle is more active than previously expected.
An artist’s depiction of two astronauts on Mars.
cokada/E+ via Getty Images
The Overview Effect describes the transformative impact of seeing Earth from space and feeling profoundly connected to our planet and concerned for it. That’s at odds with the impact of space tourism.
Human activity, through the emission of greenhouse gases, has caused the Earth’s energy imbalance.
(Shutterstock)