With its relatively long half-life of 432 years and more accessible production routes, americium-241 presents a compelling ...

Planned moon and Mars missions require timely communications and navigation systems, which is prompting NASA officials to ...

Astronomers have characterized the atmosphere of a young (20 Myr old) transiting exoplanet and found it to be unusually clear and puffy. By analyzing the planet's atmospheric features, they were able ...

Harvard & Smithsonian has discovered a rare object far beyond Neptune, from a class known as trans-Neptunian objects, th ...

A hot Jupiter-like planet, HIP 67522 b, is causing its young solar system to erupt with solar flares, potentially leading to ...

For millennia, astronomers thought Uranus was no more than a distant star. It wasn’t until the late 18th century that Uranus was universally accepted as a planet. To this day, the ringed, blue world ...

A baby planet is shrinking from the size of Jupiter with a thick atmosphere to a small, barren world, according to a new ...

Astronomers just caught a celestial sneak peek at how solar systems are born, and it starts with something delightfully small ...

Researchers use the Subaru Telescope in Hawaii to find a small object on the outer edge of the Solar System. Nicknamed ...

According to the paper laying out the research behind the discovery, "TOI-1846b is a super-Earth-sized planet, with a radius ...