planetary nebulae

A giant and strange cosmic jellyfish was discovered by the Hubble space telescope, which according to NASA is the brilliant end of an old sun-like star.

When the Sun dies, its core heats up fast enough to create observable planetary nebulae from a distance of two million light years.

If you can compress the entire history of nearly 14 billion years of space in a year, modern humans (Homo sapiens) will appear on the last day of the year at 23:53.

Fluorine in toothpaste products can be formed billions of years ago from dead stars.

A group of scientists in Australia and the United States, led by Professor Miroslav Filipović from the University of Western Sydney, discovered a new class of objects called