Astronomy

Trial participants who received an increased weekly dose of Wegovy lost 19 per cent of their body weight in a year on average, but also saw a higher risk of painful skin sensations and nausea

The steerable 60 foot diameter dish antenna of the

The dark, inner shadow of planet Earth

It is one of the largest nebulas on the sky -- why isn't it better known?

What's that rising up from the Earth?

This butterfly can hatch planets.

How does your favorite planet spin?

Lasers aren’t just useful for entertaining cats or pointing out features of powerpoint slides. They can also drill holes on icy extraterrestrial bodies from comets to Mars polar caps. At least according to a new paper in Acta Astronautica by researchers at the Technical University of Dresden, who describe a new laser drill for use on icy surfaces throughout our solar system.

Seeking refuge in caves is natural. Animals do it, and so did our ancestors. Future lunar astronauts may do the same when they visit the Moon. Lunar caves can provide protection from the harsh radiation that bathes the Moon, the wild temperature swings on its surface, and from meteorites that can damage spacesuits and equipment. But these caves need to be explored first, and new research outlines how a team of three diverse robots working together could do the job.

A study published in a recent edition of Astrophysical Journal Letters by researchers at the University of Manchester and Hong Kong University has charted the growth and evolution of IC418, spanning observations going all the way back to years after its discovery in the late 19th century.

Neutrinos are one of the most enigmatic particles in the standard model. The main reason is that they’re so hard to detect. Despite the fact that 400 trillion of them created in the Sun are passing through a person’s body every second, they rarely interact with normal matter, making understanding anything about them difficult. To help solve their mysteries, a new neutrino detector in China recently started collecting data, and hopes to provide insight on between forty and sixty neutrinos a day for the next ten years.

Just as Earth has its four familiar seasons, our Sun experiences its own version of seasonal cycles that affect life on our planet. But unlike Earth's yearly rhythm, the Sun's "seasons" unfold over an 11 year magnetic cycle that scientists are now understanding in entirely new ways.

For the second time in history, the gentle glow of the aurora has been captured in Mars's night sky. It’s a phenomenon we enjoy here on Earth and we can, to a varying degree of success predict its appearance. Now a team of scientists are learning how to predict when these spectacular light shows will happen on Mars too. It's a breakthrough that could one day help protect future astronauts on the red planet while also helping us to understand these beautiful displays work in alien skies.

I still remember the first time I saw Saturn through a 10 inch telescope when I was ten years old. It looked just like it did in pictures, a pale yellow disk circled by its stunning ring system. What I couldn't see then were Saturn's moons, including the small, icy world of Enceladus that has since become one of the most exciting targets in the search for life beyond Earth. This tiny moon shoots spectacular plumes of water from cracks in its frozen surface, plumes that contain organic molecules. But a new study suggests we shouldn’t get too excited about what these molecules actually tell us about the possibility of life.

A binary star that has puzzled astronomers for decades may finally be explained. The accretor star is sucking material from its donor star so rapidly that it can't contain it all and is forming a bright, circumbinary ring.