Staring at the sun—a close (but safe) look at our home star Staring at the sun ... Free learning activities and videos about the solar system Free learning activities and videos about the ...

The order of the planets in the solar system, starting nearest the sun and working outward is the following: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and then the possible ...

If microscopic black holes born a fraction of a second after the Big Bang exist, then at least one may fly through the solar ...

"Primordial black holes do not live in the solar system. Rather, they're streaming through the universe, doing their own ...

Scientists say microscopic black holes could explain the elusive "dark matter" that makes up a quarter of all matter in the ...

But arguably, it's the ugly duckling, ancient asteroids that are providing us with a better understanding of how our solar system evolved from a monstrosity of gas and dust into the protosolar ...

The night sky on Tuesday will treat us to a partial lunar eclipse during a supermoon. It’s an astronomical wonder that almost ...

So far, searches for the hypothetical Planet Nine have yielded no such world. There are many possible reasons for this, one ...

All this probably happened in the first 100 ... Some are in tightly bunched orbits, much closer together than the planets in our solar system. Some are Jupiter- or Neptune-size worlds that race ...

On this scale a circle two and a half miles in diameter would include all the members of our solar system; but on this scale the nearest fixed stars would be nearly as distant as is our moon.