Did You Know?
There’s a planet where it rains rubies and sapphires.
On HAT-P-7b, a gas giant 1,000 light-years away, changing temperatures in the atmosphere cause aluminum oxide (the same material as rubies and sapphires) to condense into clouds and then rain down as precious stones. The planet's extreme heat then vaporizes these gems back into clouds.
Did You Know?
The most distant human-made object is now in interstellar space.
Voyager 1, launched in 1977, became the first human-made object to enter interstellar space in 2012. It's now...
Did You Know?
Some galaxies have no dark matter.
NGC 1052-DF2 is the first galaxy discovered that appears to contain no dark matter, which challenges our understanding...
Did You Know?
There’s a planet with a surface temperature of 4,300°C, hotter than some stars.
KELT-9b is the hottest known exoplanet, with a dayside temperature hotter than many stars. It's so hot that...