A newly discovered planet that should be too big to have formed around a tiny star is throwing into question what researchers know about planet formation.
Uranus is the coldest planet in the solar system.
NASA/JPL
Five of the Uranus moons might be ocean worlds − and if there’s water, there might be life.
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
The universe is expanding faster than physicists would expect. To figure out what processes underlie this fast expansion rate, some researchers are first trying to rule out what processes can’t.
The stark landscape of the Moon as viewed by the Apollo 12 astronauts on their return to Earth.
NASA / The Planetary Society
Some dark craters on the Moon are never exposed to light − ice could be hiding in these permanently shadowed regions, and India’s Chandrayaan-3 mission marked a big step toward finding it.
The OSIRIS-REx capsule carrying samples from the asteroid Bennu lands in Utah on Sept. 24, 2023.
(NASA/Keegan Barber)
In September 2023, a NASA mission successfully brought samples of an asteroid down to Earth in a sealed capsule. Analysis of these samples may reveal information about the origins of the universe.
Astronauts prepare to leave the International Space Station.
NASA via AP
When you’re an astronaut landing on the Moon, you can’t rely on the same gravitational cues we have on Earth. But regimented training with sensory devices could one day prevent spatial disorientation.
Upcoming NASA missions will help scientists understand the composition of asteroids – which could inform companies one day hoping to commercially mine asteroids.
An illustration of an asteroid orbiting through space.
Mark Garlick/Science Photo Library via Getty Images
Scientists have been searching Earth’s surface for superheavy elements too difficult to make in the lab, but now, many are looking to the skies instead.
An image from January 2023 showing an X1.2 class flare erupting on the Sun (far left hand side).
NASA/GSFC/SDO
Some space rocks you can get for free – if you know how to identify them. Rarer materials cost more, and the asteroid sample NASA just brought back has a high price tag.
The Orionids meteor shower takes place between October and November.
Brian Spencer / Shutterstock
The meteor shower happens when Earth passes through debris from Halley’s comet.
Artists impression of what WASP-17b could look like, based on.
data gathered by Mid-Infrared Instrument (MIRI) and other ground- and space-based
telescopes, including the Hubble and Spitzer space telescopes.
NASA, ESA, CSA, Ralf Crawford (STScI)
Controlled experiments are impossible in astronomy, as are direct measurements of physical properties of objects outside our solar system. So how do astronomers know so much about them?