May 7, 2019 · We can use geological processes and radioactive decays in order to figure out how old rocks are on earth, and that's easy to do because we have rocks on earth kicking around …

May 15, 2018 · For the eight planets of the solar system they have all the matter that was around in their orbit as they were growing they accreted onto themselves. The outskirts of the solar …

Dec 7, 2021 · The rain and snow on other planets is actually made of things that we stand on; rocks, liquid glass, molten iron. The rain in some of these planets will be made out of …

Mar 4, 2025 · The planets move against the background fixed stars, and that's because they're orbiting the Sun. Similarly, although much fainter, when we see these near-Earth asteroids …

Apr 19, 2016 · The planets will then also all be going round in the same direction, the same direction that disc was going and the planets will also be spinning in the same direction as the …

Dec 10, 2024 · Jocelyn - We now know that quasars have massive black holes in their centres and it's stuff around the black hole that generates the primary radio signal. Then as it travels …

Feb 25, 2025 · So during the late heavy bombardment, when all the rubble left over from building the planets is still flying around through space and chipping off bits of Mars and Earth as …

Apr 21, 2015 · Question I have always been wondering if the earth's orbit is due to a perfectly balanced equation where the sun's gravity is cancelled by the inertia of our velocity, why is it …

Apr 29, 2024 · Will - Delightful to have found a calling. But that's in terms of the internal human body clock. But when it comes to syncing up communications and satellites like that, are we …

Dec 5, 2017 · Basically all the planets, the way that we view it, they all rotate counter-clockwise. If we were to stand above the solar system the Sun is spinning counter-clockwise, the planets …