"The national security establishment has already been doing this for five decades but thought that no one could replicate it, ...

What's special about Chiron's rings is that they're still forming; this marks the first time astronomers have ever seen a ...

Portal Space Systems says it has successfully tested its solar thermal propulsion system at operational temperatures inside a ...

Time is running short for scientists hoping to collect data from 3I/Atlas, a massive interstellar object hurtling away from the Sun.

Material around Chiron, a small icy world in the far reaches of the solar system, may be taking shape into a ring system of ...

The Hubble Space Telescope time-lapse captured footage of Jupiter, Saturn, Uranus and Neptune. Credit: SCIENCE: NASA, ESA, ...

A new analysis estimates that the asteroid belt is steadily losing mass each year, and may not be as permanent a feature of the solar system as we thought. A team of astronomers led by Julio Fernández ...

KENNEDY SPACE CENTER — SpaceX’s Falcon 9 rocket pierced the Wednesday morning sky as it launched three spacecraft from NASA and NOAA that will study the solar system’s “bubble,” collect information on ...

Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its nebular gas had been consumed—Earth's solar system and its planets looked more ...

The astronomical community is horrified at plans made by a for-profit company to flood the night sky with sunlight.

Spirals of solar wind can spin off larger solar eruptions and disrupt Earth's magnetic field, yet they are too difficult to detect with our current single-location warning system, according to a new ...