China could be the second country to operate a rover on Mars.

The landing site is in the Outback of South Australia.

Earlier this year, an international team of scientists announced the second detection of a gravitational-wave signal from the collision of two neutron stars. The event, called GW190425, is puzzling: The combined mass of the two neutron stars is greater than any other observed binary neutron star system. The combined mass is 3.4 times the mass of our sun.

Wednesday's scheduled launch of SpaceX’s Crew Dragon capsule with astronauts aboard would be not only the first crewed launch to orbit by a private corporation but also a major upset in a new kind of space race.

The Demo-2 launch, carrying NASA astronauts Doug Hurley and Bob Behnken, will lift off from Kennedy Space Center in Florida on May 27.

Planet Nine is a theoretical, undiscovered giant planet in the mysterious far reaches of our solar system. The presence of Planet Nine has been hypothesized to explain everything from the tilt of the sun's spin axis to the apparent clustering in the orbits of small, icy asteroids beyond Neptune. But does Planet Nine actually exist?

For generations, astronomers have dreamed of building telescopes on the lunar farside. And that dream may soon be a reality.

The real Lord of the Rings is Saturn, a massive outer planet boasting a set of rings about 27 Earths wide. Being a gas giant like Jupiter, Saturn shares many of its attributes: a strong magnetic field generated by churning metallic hydrogen deep inside, raging storms in its gaseous upper atmosphere, and a diversity of planet-like moons that are worlds unto themselves. Saturn’s rings and larger moons are visible even from small backyard telescopes.

Peering so deeply would require adding a space component to the Event Horizon Telescope.

New calculations come up with estimate for worlds capable of communicating with others

Europe's Solar Orbiter (SolO) probe makes its first close pass of the Sun on Monday, tracking by at a distance of just over 77 million km. SolO was launched in February and is on a mission to understand what drives our star's dynamic behaviour. The close pass, known as a perihelion, puts the probe between the orbits of Venus and Mercury.

There are many Earth-like planets where we could start interstellar colonies. But life on a super-Earth would be very different than life on Earth.

Bright radio signals from Titan indicate the presence of ancient lake beds in its tropics, a new analysis finds.

In 1995 a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that finding—which won the scientists a portion of the 2019 Nobel Prize in Physics—researches have discovered more than 4,000 exoplanets, including some Earth-like planets that may have the potential to harbor life.

An analysis of images of the dwarf planet's surface and computer simulations of its interior have led researchers to propose a "hot start" scenario for Pluto's formation as the solar system, including Earth, took shape.

Scientists think a planet larger than Earth lurks in the far reaches of the solar system

Ever since last summer’s Pluto flyby of NASA’s New Horizons spacecraft, two UVA scientists have been astounded by images streaming in from the edge of the solar system: breathtaking shots of Pluto and its moons, close-up views of icy mountains, glaciers of frozen nitrogen and the dwarf planet’s hazy, tenuous atmosphere. UVA planetary astronomer Anne Verbiscer, and UVA planetary geologist Alan Howard were among the first scientists to witness and begin analyzing photos and data.

American and Russian engineers are getting closer to a new plan for cooperating in space, one that would go beyond low Earth orbit and preserve the multinational alliance forged at the dawn of the International Space Station program in 1993. Organizations on both sides are quietly toying with the idea of going back to the moon together. That is, if politics don't get in the way. With the ISS scheduled to make a controlled plunge into the ocean in 2024, the partners have been preparing to go their own ways. NASA, while funding companies like SpaceX to go to orbit, is developing the Orion spacecraft and the super-heavy rocket called...

Amazon boss Jeff Bezos says the big, re-usable rocket he has been developing inside his Blue Origin space company will be called New Glenn, after John Glenn.

“So the ship is really rolling, and the capsule is out there like a wrecking ball.