Astronomers using the James Webb Space Telescope are unraveling the mysteries of TRAPPIST-1e, an Earth-sized exoplanet 40 ...

NASA is inviting the public to take part in 36 “citizen science” projects that let volunteers contribute to real scientific ...

New observations suggest that the dwarf planet Makemake is surrounded by faintly glowing methane gas. Scientists are unsure ...

A new study rules out the existence of global oceans of water on Neptune-like planets such as K2-18b, finding their water ...

The stratospheric polar vortex high above Antarctica has rapidly heated up. These sudden bursts of heat can bring rapid ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), astronomers have discovered two new exoplanets around a young ...

For decades, Saturn’s upper atmosphere has been one of the solar system’s great enigmas. Even the Cassini spacecraft, which ...

The spacecraft will map the boundaries of the heliosphere, study how Earth’s outer atmosphere reacts to solar activity and ...

The methane gas may constitute a rarefied atmosphere, or it may come from erupting plumes on Makemake’s surface.

Some countries’ leaders are watching rising seas threaten to swallow their homes. Others are watching their citizens die in floods, hurricanes and heat waves, all exacerbated ...

On this much-anticipated astronomical moment, on September 23, 2025, Neptune will reach its opposition. This day coincides with the autumn equinox, meaning that the duration of daylight and nighttime ...

Today is Sunday, Sept. 21, the 264th day of 2025 with 101 to follow. The moon is new. Morning stars are Jupiter, Mercury, ...