Is Dione bigger than Earth?

Since there are many craters larger than 35 kilometers (21 miles), Dione could have been repeatedly spun. Dione has probably been tidally locked in its current position for the past several billion years.
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Dione Statistics
Date of discovery 1684
Mass (kg) 1.05e+21
Mass (Earth = 1) 1.7570e-04
Equatorial radius (km) 560

What is the size of Dione?

348.84 mi
Dione/Radius

Can we live on Dione?

A NASA spacecraft circling Saturn has discovered a wispy oxygen atmosphere on the ringed planet’s icy moon Dione, but you wouldn’t want to live there. For one thing, you wouldn’t be able to breathe — Dione’s atmosphere is 5 trillion times less dense than the air at Earth’s surface, scientists say.

Is Dione moon habitable?

If Dione has an existing ocean, it would probably have survived for the whole history of the moon, and thus could offer a long-lived habitable zone for microbial life, according to the study’s authors. … According to the model, Dione’s ocean would be several tens of kilometers deep and would surround a large rocky core.

Can the moon Dione support life?

Summary: Using data from NASA’s Cassini spacecraft, scientists modeled chemical processes in the subsurface ocean of Saturn’s moon Enceladus. The studies indicate the possibility that a varied metabolic menu could support a potentially diverse microbial community in the liquid water ocean beneath the moon’s icy facade.

What planet does Dione belong to?

Saturn
Dione is a small moon of 349 miles (562 km) in mean radius orbiting Saturn every 2.7 days at a distance of 234,500 miles (377,400 km), which is roughly the same distance that the moon orbits around the Earth.

How was Dione discovered?

Exploration. Dione was first imaged by the Voyager space probes. It has also been probed five times from close distances by the Cassini orbiter. There was a close targeted flyby, at a distance of 500 km (310 mi) on 11 October 2005; another flyby was performed on 7 April 2010 also at a distance of 500 km.

Does Dione have a subsurface ocean?

One of Saturn’s moons, Dione, has joined the ranks of our solar system’s “ocean worlds”—icy moons or planets with oceans beneath their crusts, Astronomy Now reports. (Three ocean worlds orbit Jupiter, three orbit Saturn, and Pluto could also belong to the club.)

How was Dione formed?

Created by tectonic activity, these fractured areas crisscross the moon, running tens to hundreds of kilometers in length. Cassini also detected a wispy oxygen atmosphere on Dione. It is very thin; there is just one oxygen ion for every 0.67 cubic inches (11 cubic centimeters).

How big is Titan vs Earth?

Size.

With a mean radius of 2576 ± 2 km and a mass of 1.345 × 1023 kg, Titan is 0.404 the size of Earth (or 1.480 Moons) and 0.0225 times as massive (1.829 Moons). Its orbit has a minor eccentricity of 0.0288, and its orbital plane is inclined 0.348 degrees relative to Saturn’s equator.

Who is the God Dione?

Dione, in Greek mythology, a consort and, at Dodona in Epirus, a cult partner of Zeus, the king of the gods. Since the partner and wife of Zeus was normally the goddess Hera, it has been conjectured that Dione is an older figure than Hera. Dione was variously described.

Does Dione have an atmosphere?

Saturn’s icy moon Dione has an atmosphere, albeit a thin one, astronomers have discovered. NASA’s Cassini spacecraft revealed Dione’s atmosphere during a recent close flyby of the Saturnian satellite. (Related pictures: “New Views of Saturn’s ‘Sponge’ Moon Hyperion.”)

Is it possible to terraform?

“Terraforming is not possible using present-day technology.” … Edwards and University of Colorado, Boulder professor Bruce Jakosky also probe terraforming in a 2018 article published in Nature Astronomy. They ultimately conclude “terraforming is not possible using present-day technology.”

Does it rain on moon?

The moon has a very thin atmosphere so it cannot trap heat or insulate the surface. There is no wind there, no clouds, no rain, no snow and no storms, but there is “day and night” and there are extreme differences in temperatures depending on where the sun is shining.

Does Europa have gravity?

1.315 m/s²
Europa/Gravity

Would Venus be habitable?

A sophisticated climate model suggests that liquid-water oceans never formed on Venus, and that some planets outside the Solar System that were thought to be habitable might not be.

Can we turn Mars into Earth?

The planet’s lack of a protective magnetic field means the solar wind will continue stripping its atmosphere and water, reverting our changes to Mars or constantly degrading them. To truly terraform Mars, we would need to fix its magnetic field—or lack thereof.

Can the moon be terraformed?

We can’t terraform the moon. The Moon is too small, has no magnetic field, not nearly enough water, nitrogen, etc. … OK, to hold on to an atmosphere at 1 AU from the sun, you’ll need the Moon to have a magnetic field and more gravity. To do that, you’ll need more mass.