Tereza Pultarova

New measurements by the James Webb Space Telescope found that a rocky exoplanet orbiting a star known as TRAPPIST-1 most likely has no atmosphere.

New images of Uranus and Jupiter taken by the Hubble Space Telescopes reveal slow weather changes on these giant, distant planets.

A surprise solar storm supercharged auroras across the U.S. and Europe last night (March 23), with sightings of the colorful displays reported from as far south as New Mexico and Arizona.

The strongest solar storm in six years delayed Rocket Lab's early morning launch on Friday, March 24, by 90 minutes, and space weather forecasters didn't see coming.

These weather disasters provide a glimpse of lies ahead for planet Earth if humankind fails to stop climate change progress.

Since its arrival in the solar system in 2017, interstellar object 'Oumuamua has puzzled scientists. Two American astronomers now think they have solved one of the space rock's biggest mysteries.

Global sea levels rose more slowly in 2022 than models predicted. But there's no reason to celebrate, according to NASA.

First hibernation studies with human subjects could be feasible within a decade, a European Space Agency (ESA) researcher thinks.

NASA's Solar Dynamics Observatory captured what might be 'the tallest tornado' in the solar system swirling across the north pole of the sun.

For the first time, a space-born smog sensor will be able to provide data on the distribution of air pollutants over America non-stop and in real time.

Europe's first Jupiter-bound mission is in the final stages of preparations for its launch on April 13 from the European spaceport in Kourou, French Guiana.

Forms of oxygen created by living organisms can be found in space around our planet, a new study has revealed, hinting at a potential new method for tracing life on exoplanets.

Antarctic sea ice shrunk to a record low in February, satellite measurements revealed.

The powerful solar storm that struck Earth earlier this week treated an American astrophotographer to unexpected aurora displays during a shooting trip to California's Death Valley.

A series of powerful solar storms set the sky ablaze in the last two days of February, with aurora sightings reported unexpectedly far away from their usual territories.

A new image taken by a camera designed to study dark matter reveals remnants of an ancient supernova explosion in unprecedented detail.

A solar storm that swept across Earth on Monday (Feb. 27) forced SpaceX to delay a Starlink launch and temporarily disrupted operations of several Canadian oil rigs.

Powerful solar wind is blowing from the sun these days, setting the sky ablaze with auroras as far south as England's capital London. And more is yet to come.

Experts have been sounding alarm bells for years that Earth orbit is getting a bit too crowded. So how many satellites can we actually launch to space before it gets to be too much?

Astronomers are observing the supermassive black hole at the center of our Milky Way galaxy tearing apart a strange dust cloud in real time.

The James Webb Space Telescope has looked inside one of the oldest components of our Milky Way galaxy, the Messier 92 globular cluster located some 27,000 light-years away from Earth.

The James Webb Space Telescope found massive, mature galaxies inhabiting the universe so soon after the Big Bang that according to current theories they really shouldn't exist.

A Japanese cubesat launched aboard NASA's Artemis 1 moon mission took a video of Comet C/2022 E3 (ZTF) earlier this month, about two weeks after the ice ball's closest approach to Earth.

The Very Large Telescope in Chile took images of its lightest exoplanet yet after data from two European sky-mapping missions indicated something was tugging at the orbit of a distant young star.