Moonmoons: scientists look at the likelyhood of moons of moons
Moons can be inert pieces of rock, hunks of ice or volcanically active.
Moons can be inert pieces of rock, hunks of ice or volcanically active.
If humans get thirsty on their way to Mars, it looks like we’ll be able to stop for drinks on our own Moon.
My nine-year-old daughter can’t get over the fact that, as of now, we can’t detect any boundary to the universe.
The Earth is currently flying around the Sun at around 70,000 miles-per-hour.
Around four billion light years away, just to the left of the constellation Orion, an active galactic nucleus is blasting ultrahigh-energy cosmic rays and neutrinos right at us.
To test an idea scientifically, you should aim to have an experimental condition that you can compare to a control.
Found: Lost asteroid, spotted in the Kuiper belt, past Pluto No collar or leash, but answers to the name 2004 EW95, and spots of ferric oxides and phyllosilicates seem to be from asteroid belt near Mars.
My five-year-old still struggles with idea that his older sister will someday want to live on her own (or that he might!), but he has seemed to finally come to terms with the fact that the Sun will eventually destroy the Earth.
While we live on an impressively wet planet today, the Earth probably didn’t start out with our lush collections of rivers, lakes and oceans.
Building a planet out of dust isn’t easy.