Sun

Astronomers have discovered three new near-Earth asteroids, including the closest known to the Sun. Another is one of the largest known asteroids considered potentially hazardous to Earth, measuring almost a mile wide with an orbit close to our own.

Tree rings can preserve a snapshot of the Earth throughout the tree's life. Now Australian scientists analyzing these records have found evidence of huge radiation storms that periodically bathe the planet – and their origin remains a mystery.

Astronomers have taken the sharpest images ever of the most massive star in the known universe. With these new images the scientists refined just how big the star is, and in the process revised our ideas of how big stars could possibly ever get.

NASA has selected a fascinating new project for further development, known as the Diffractive Solar Sail. By bending light before it hits the sail, this device could propel spacecraft more efficiently than conventional propulsion technologies.

Since launching in February of 2020, the Solar Orbiter probe has been zeroing in on the Sun and has now used its advanced ultraviolet imager to capture the highest-resolution image ever of its outer atmosphere.

Scientists at Northeastern University have put an interesting new solution forward in the realm of UV monitoring – one that came about through a serendipitous discovery concerning the color-changing ways of camouflaging squid.

The Solar Orbiter spacecraft has captured a dramatic image of a giant eruption from the Sun. ESA says this solar prominence, which luckily wasn't pointing at Earth, is the largest ever observed with the full solar disk in a single image.

A new design for a solar-powered desalination device prevents the build-up of salt, making for an efficient and affordable system. Just four dollars' worth of materials should be enough for a device that can provide a family's daily drinking water.

In ice cores from both ends of the planet, scientists have discovered evidence of an extreme solar storm that struck Earth around 9,200 years ago, and strangely it seemed to have occurred during a period when the Sun should have been rather quiet.

After setting off back in 2018 on a history-making mission to study the Sun by getting up close and personal with its atmosphere, NASA's Solar Parker Probe has finally entered this region area for the first time.

A rarely seen total eclipse of the Sun in Antarctica on December 4 is drawing the attention of an international partnership of scientists who hope to learn more about the effects of such eclipses on space weather.

NASA's Parker Solar Probe has set a new pair of records after it survived its 10th close encounter with the Sun, coming within 5.3 million miles of the surface and reaching a speed of 363,660 mph, making it the fastest-ever artificial object.