About 4.5 billion years ago, the solar system was just a giant, spinning cloud of gas and dust. Today, it's flat. Here's how that happened.
After three days in space, SpaceX's first all-civilian crew returned to Earth tonight, splashing down off the Florida coast to end a historic mission.
In the 12th century, Chinese and Japanese astronomers spotted a supernova in the sky shining as brightly as Saturn.
Physicists turned on a new type of gravitational-wave sensor and saw two intriguing results, but they aren't yet ready to claim a discovery.
Scientists predict that an ancient supernova will reappear in the sky for a 4th time in the year 2037, thanks to the meddling influence of dark matter.
A distant supernova previously imaged by the Hubble Space Telescope will be visible again from Earth and surrounding space in 2037, astronomers predict.
China's Shenzhou 12 astronauts have sent back stunning images taken out of small windows on the Tianhe space station module in low Earth orbit.
Physicists have created the first-ever atomic vortex beam — a swirling tornado of atoms and molecules with mysterious properties that have yet to be understood.
A new freely downloadable universe simulation reveals the structure of galaxies and galactic clusters over more than 13 billion years of history.
A six-year search of space beyond the orbit of Neptune has netted 461 newly discovered objects, including four that could shed light on Planet Nine.
A private archivist known for unearthing rare images from the early years of spaceflight is now selling a treasure trove of NASA prints representing some of the most iconic photos taken.
Perseverance collected another drilled-out core of a Martian rock dubbed "Rochette," sealing the sample in its designated titanium tube on Wednesday (Sept. 8).
Satellite images capture aerial views of an oil spill in the Gulf of Mexico following Hurricane Ida's landfall on Aug. 29.
Two physicists just snagged $3 million for helping develop a super-precise clock that could allow scientists to study and explore the universe like never before.
Alarms blared aboard the Russian side of the International Space Station (ISS) early Thursday (Sept. 9), and the crew reported seeing smoke and smelling burnt plastic, according to news reports.