And because of that, when an eddy shifts, when the Earth becomes a snowball, when the Earth becomes very hot, when the Earth gets hit by an asteroid, when you have supervolcanoes, when you have solar flares, when you have potentially extinction-level events like the next election -- (La...
"We believe it was a comet or asteroid measuring perhaps a few hundred meters wide," says Don Yeomans of NASA's Near-Earth Object Office at JPL. "If something of similar size hit Earth—we're talking about 2000 megatons of energy--there would be serious regional devastation or a tsunami...
namely, the time taken to complete an orbit.fn5 We know the radius of the orbit of the real Moon (Hipparchus had measured it in antiquity) and its period (one month). We know the radius of the orbit of the little moon (the radius of the Earth, measured by Eratosthenes in antiquity)....
and for good reason. The “Red Planet” has been lauded by scientists because of its similarity to Earth. The similarity convinces many that humans may be able to fashion a second home out of it. Especially consideringnear-apocalypticwarnings about the devastation of climate c...
This picture is the theme of " space tourism ", content is a team of space tourism experts in a spaceship into space. Travel home in space to watch the stars, they fly away from the earth, in space to see the moon, Mars, Jupiter, Saturn, Uranus, Neptune and Venus, planet. Finally...
An illustration of the moon near Jupiter on Jan. 10, 2024. (Image credit: Chris Vaughan/Starry Night) At dusk on Friday, Jan. 10, look to the east for the brilliant planet Jupiter shining several finger widths to the lower right (or celestial south) of the bright, waxing gibbous moon—...
If you were located halfway between earth and the moon, what acceleration would you have toward earth? The earth-moon separation is 60 earth radii. What is the moon's orbital period? What does the moon weigh? Jupiter has a mass of 1.90 x 10^(27) kg and makes a circular orbit of 7....
but virtually impossible to see with the naked eye. Comet 12P/Pons-Brooks is swinging past Earth, as it does every 71 years. Still faint, it will be positioned near Jupiter during the eclipse. But it will take a sudden outburst of dust and gas to see this so-called devil comet without...
Jupiter's magnetic field is 20,000 times stronger than that of Earth, so the giant planet's auroras are far brighter than the ones that blaze in our skies. And the Jupiter lights aren't just driven by the solar wind: Most of the particles that cause the planet's auroras are blasted ...
Because of its closeness, a supermoon can appear up to 14% larger and 30% brighter compared to a full moon at or near apogee (its farthest point from Earth). What is the closest and farthest distance the moon can be from Earth?