Astronomers can tell that it lacks a dense core from the details of its gravitational pull on the Galileo spacecraft during several very close flybys. This fact surprised scientists, who expected that all the big icy moons would be differentiated. [#highlight3]It is much easier for an icy...
Mercury is the smallest planet, but it is very dense. Among the planets in the solar system, only Earth is denser.
How big is the Fermi Gamma-Ray Space Telescope? What size do asteroids range between in the asteroid belt? What is the size of the planet Uranus? How big is Alpha Centauri? How dense is the Kuiper belt? How big is a protostar?
The Interior of Planet Mars Mars, like Earth, has a dense inner core. Thought to measure 930 to 1,300 miles (1,500 to 2,100 kilometers) around its radius, this layer contains nickel, sulfur and iron. The core is enveloped by a series of other layers, with the outermost being the...
A small dense planet might have similar surface gravity to a large planet with lower density. To get the jump height we divide the jump height on Earth by a planet's surface gravity. Heights you could jump on other planets and worlds in the Solar System ...
Earth's atmosphere is dense with particles at this end of the scale. L=1: These eclipses are also dark, but the moon may appear with dark brown or dark gray hues. Identifying lunar features is challenging. L=2: The moon will appear a deep red or rusty shade. The umbra has a dark...
How old is the Sikhote-Alin meteorite? What property is common to all spiral galaxies? What shape do irregular galaxies have? What is the elliptical galaxy that is closest to the Milky Way? How old is the planet Mercury? How many stars are in the Milky Way Galaxy?
These objects are some of the densest in the Universe, yet are typically just slightly bigger than our own planet. Nevertheless, they can reach temperatures of over 100,000°C.At the centre of the Southern Ring Nebula is a hot, dense white dwarf star. As it transformed into a white ...
—White dwarfs: Facts about the dense stellar remnants —Smallest, densest white dwarf ever discovered packs the sun's mass into a moon-size stellar corpse —The search for alien life (reference) If a planet does transit its white dwarf, then transit spectroscopy — watching for the planet's...
This may not be a word-for-word transcript. Leaving Earth to find new homes in space is an old dream of humanity and will sooner or later be necessary for our survival. The planet that gets the mos…