Tereza Pultarova

Astronomers confirmed that four ancient galaxies detected by the James Webb Space Telescope in the early months of its operations are the oldest ever seen, nearly as old as the universe itself.

The James Webb Space Telescope's image of the Southern Ring Nebula has revealed a few surprises in this snapshot of a stellar death.

For the past 10 months, Amazon has been testing a machine learning software in space that can analyze Earth observation images on its own and send only the best ones to Earth.

Satellites keep watching as the Mauna Loa volcano on Hawaii's Big Island continues spewing geysers of boiling lava and plumes of volcanic ash over a week after it woke up from a 38-year sleep.

The life-support system for generating livable conditions inside the Orion capsule is not being fully tested during the spaceship's debut uncrewed mission Artemis 1.

Ground has finally been broken today at two sites in Africa and Australia that will host the Square Kilometer Array Observatory (SKAO), the largest radio telescope in the world.

Less than two weeks after a bright fireball lit up the sky above the Great Lakes, another spectacular meteor impressed skywatchers in the Northeast.

NASA's Mars helicopter Ingenuity has performed its shortest flight ever, the first after a major software update that will allow the chopper to land more safely and navigate over rugged terrain.

NASA has released a video taken by a camera on board the Space Launch System moon rocket showing the fiery separation of the rocket's two strap-on boosters shortly after lift-off.

European Space Agency member states approved a record-breaking nearly 17 billion Euro budget that will help cover the cost of rebuilding the landing platform of the beleaguered ExoMars rover.

The European Space Agency (ESA) has announced a new astronaut class with two women in the lineup and an amputee paralympic sprinter who is a trauma surgeon.

The James Webb Space Telescope has revealed an exoplanet's atmosphere in unprecedented detail, allowing scientists to understand the planet's past and test methods for detecting alien life.

A small space rock was discovered on Saturday (Nov. 19) just a few hours before hitting Earth's atmosphere and landing in Canada's Lake Ontario.

A "charger" rover that could supply power to robots exploring shaded craters on the moon's south pole will join expanding lunar infrastructure by 2025.

A U.K. spaceport that will host the first-ever Virgin Orbit launch from non-American soil has received a license from the U.K. national regulator.

A British astronomer who went missing while visiting the European Southern Observatory's La Silla site in Chile was found dead after nearly two months of searching.

A meteorite that lit up the sky above an English village last year is almost as pristine as samples collected by space probes and contains the "right" kind of hydrogen to explain water on Earth.

SpaceX's loss of 40 Starlink satellites in February was preceded by the company using an inaccurate space weather forecasting model to decide to launch following a geomagnetic storm warning.

European aerospace giant Airbus demonstrated how solar power could be beamed from space in a new experiment.

NASA's moon-bound Orion space capsule fired its main engine for the first time about 8 hours after the launch of the Artemis 1 mission to adjust its trajectory and check out the system.

The Artemis 1 Orion spacecraft is on its way to the moon and already sharing photos from its historic trip that will pave the way for humankind's return to Earth's natural satellite.

NASA's Space Launch System moon rocket is standing on a launch pad (again) ready for its debut flight, and if you can't make it there in person, you can experience it with Space.com's Brett Tingley.

The European Solar Orbiter spacecraft watched an odd snake-like filament crawl across the sun's surface just before a massive plasma eruption.

The Nord Stream natural gas pipeline leak may not cause a noticeable warming of the climate but still "damage to infrastructure such as this should be avoided," scientists say.

The world will warm beyond the 1.5 degrees Celsius threshold set out to avoid the worst consequences of climate change but can cool back down if timely action is taken, scientists say.