NASA’s probe will enter the star’s atmosphere on Christmas Eve, making the closest pass ever of the Sun’s surface, to try to unravel the mystery of why it is so much hotter than its surface
C/2023 A3 Tsuchinshan-ATLAS, the brightest comet in 100 years, will be visible to the naked eye from October 12
All galaxies, and the Milky Way is no exception, are dying: They no longer form stars as before, and will end up completely extinguished
The concept of day and night on Earth is very different from that of other worlds, where a day can last longer than a year or areas of a planet can experience eternal night
You may need a pair of binoculars to catch Mercury and Uranus, which don’t shine as bright as the other planets. But the five-planet array will be visible from anywhere on Earth, as long as you have clear skies
Radar images taken by a probe in 1991 suggest there was an eruption on the planet that was double that of Hawaii’s Kilauea volcano
