How high up is the lowest level of ...

A bright, greenish, beam of light was seen in the sky near Feltwell in Norfolk on 3 December at around 5am, not far from the US air bases in Suffolk, prompting speculation about aliens. Jim NR Dale, f

The end is inevitable. Eventually, our Sun will grow old and die. When it does, how much of the rest of the Solar System will it take with it? The fate of Earth hangs in the balance… The end will star

So you thought the Universe was a place of peace and calm? Think again. Yes, the night sky looks the same as centuries ago – a trustworthy and unchanging backdrop to daily life that helps to ease your

Meteors are remnants from the creation of our Solar System that burn up when they hit Earth’s atmosphere. As they vaporise, typically 80km to 120km (50–75 miles) above the ground, they leave a trail o

The interstellar comet or spacecraft, 3I/Atlas (FT465:27) excited the world of ufology in 2025. Despite Avi Loeb’s best efforts, most experts regarded it as an unusual object but not a 33-billion-ton