Why did they form at that time? Astronomers know from observing distant exploding stars that the size of the universe has ...

Many space-lovers know the phrase "We are all made of star stuff." And it's true - our planet formed from the dust cloud left ...

A new map reveals the most detailed picture of hydrogen atoms in the Milky Way ever made. Benjamin Winkel and the HI4PI collaboration When it comes to the atoms and elements of the universe, hydrogen ...

George W. Bush made hydrogen his baby back in the early 2000's, but this alternative fuel could still have its day in the sun ...

Hydrogen, the most abundant element in the universe, is found everywhere from the dust filling most of outer space to the cores of stars to many substances here on Earth. This would be reason enough ...

Everything we can see and touch, and quite a lot that we can’t as well, is made of tiny particles called atoms. Some substances, like particles of this iron, contain only one kind of atom. Iron is an ...

Solar flares are the most powerful explosions in the solar system. Packing a punch equal to a hundred million hydrogen bombs, they obliterate everything in their immediate vicinity. Not a single atom ...

How do we know water is H2O if we can't see the atomic structure and how are the elements identified? originally appeared on Quora: the knowledge sharing network where compelling questions are ...