Which planet has a ring around itself?
Saturn
Are any of Jupiter’s moons habitable?
Habitable environments do not necessarily harbor life. The strongest candidates for natural satellite habitability are currently icy satellites such as those of Jupiter and Saturn—Europa and Enceladus respectively, although if life exists in either place, it would probably be confined to subsurface habitats.
Can Europa sustain life?
Europa’s surface is blasted by radiation from Jupiter. That’s a bad thing for life on the surface – it couldn’t survive. But the radiation may create fuel for life in an ocean below the surface. The radiation splits apart water molecules (H2O, made of oxygen and hydrogen) in Europa’s extremely tenuous atmosphere.
Does Europa have hydrothermal vents?
Image via NASA/JPL-Caltech. Like Earth, Jupiter’s moon Europa is believed to be a water world. Scientists have strong evidence that a global subsurface ocean lies beneath Europa’s outer icy surface crust. There’s a rocky bottom and possible hydrothermal vents much like those found on ocean floors on our planet.
What evidence indicates that Mars has water?
On September 27, 2012, NASA scientists announced that the Curiosity rover found direct evidence for an ancient streambed in Gale Crater, suggesting an ancient “vigorous flow” of water on Mars. In particular, analysis of the now dry streambed indicated that the water ran at 3.3 km/h (0.92 m/s), possibly at hip-depth.
What planet does Europa orbit?
Jupiter
Why is Venus often called Earth’s sister planet?
Venus is sometimes called Earth’s twin because Venus and Earth are almost the same size, have about the same mass (they weigh about the same), and have a very similar composition (are made of the same material). They are also neighboring planets.
How did gravity come into existence?
The legend is that Newton discovered Gravity when he saw a falling apple while thinking about the forces of nature. Whatever really happened, Newton realized that some force must be acting on falling objects like apples because otherwise they would not start moving from rest.