New research suggests that ancient Mars might have experienced alternating hot and cold periods, enabling it to retain liquid ...

NASA's Solar Dynamics Observatory captured a massive 'tornado' on the sun in multiple wavelengths. Unlike the Earth, "tornadoes on the sun are controlled by magnetism," according to Space Weather.

When astronomers found a large world farther out than Pluto, it became one of the final nails in the coffin of our ninth ...

Satellites have managed to detect faint electromagnetic signals generated by ocean tides, suggesting that space-born sensors ...

The gigantic coronal hole is blasting high-speed solar wind toward Earth, potentially igniting vibrant auroras and minor ...

Gardeners about to eradicate weeds from their garden are being advised to avoid one viral hack that could cause damage.

Solar weather will likely impact the Earth’s atmosphere this weekend, including a possible geomagnetic storm that could bring ...

A vast 500,000 mile-wide coronal hole has opened up in the Sun's atmosphere, which is now shooting high-speed solar wind ...

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

Al Jabbar is one of the Arabic names for Orion, the “Hunter", one of winter's most conspicuous constellations.

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Research on hidden structures deep within Earth’s mantle challenges theories about our planet’s middle layer and could ...