Tereza Pultarova

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.

A stream of solar plasma arrived at Earth last night, triggering rare red aurora displays across Canada, northern U.S. and Europe. And more is on its way.

NASA-developed technology that can remotely detect the tiniest motions of the body caused by basic processes necessary for life will be used by disaster relief teams in earthquake-stricken Turkey.

Vincent Ledvina was as excited as the particles in the atmosphere over his head when a well-timed solar eruption triggered a night of auroral splendor on Valentine's Day.

Earth-observation satellites continue to assess the vast damage in Turkey and Syria caused by the devastating series of earthquakes that struck on Feb. 6.

Two enormous cracks in Earth's crust opened near the Turkish-Syrian border after two powerful earthquakes shook the region on Monday (Feb. 6), killing over 20,000 people.

A satellite system designed to track hurricanes can reveal where damaging microplastics accumulate in the ocean. A new study now reveals why.

Researchers are studying hibernating Arctic squirrels in order to harness the benefits of this natural state to protect astronauts on long-duration space missions.

The James Webb Space Telescope had to perform outside of its design limits to observe the collision of NASA's DART probe with asteroid moonlet Dimorphos in September last year, NASA has revealed

A mini-planet orbiting in the frigid outer reaches of the solar system has a Saturn-like ring of dust and debris that defies the rules of physics, a new study has revealed.

A constellation of tiny satellites could revolutionize the study of the most energetic explosion in the cosmos and help astronomers untangle the mysteries of colliding neutron stars.

The James Webb Space Telescope reveals the earliest stages of galaxy formation in a time when the universe was less than 1 billion years old.

A huge filament of solar plasma has broken off the sun's surface and is circling its north pole like a vortex of powerful winds, but scientists have no clue what caused it.

A rare green comet that hasn't been seen since the time of the Neaderthals made its closest approach to Earth on Feb. 1, and astrophotographers all over the world couldn't peel their eyes off it.

A British startup has performed a first-of-its-kind microgravity experiment using a drone.

The first-ever satellite designed to detect major emitters of the greenhouse gas carbon dioxide is set to launch to space this year.

Magnetic properties of coronal holes in the sun's atmosphere can help forecast the severity of geomagnetic storms that hit Earth.

Watch asteroid 2023 BU make a close flyby of Earth in images shared by the Virtual Telescope Project taken when the rock was just 13,670 miles (22,000 kilometers) from the surface.