Search results
Results from the WOW.Com Content Network
Curiosity's view of the Mars moons: Phobos passing in front of Deimos in real-time (video-gif, 1 August 2013) As seen from Mars, Deimos would have an angular diameter of no more than 2.5 minutes (sixty minutes make one degree), one twelfth of the width of the Moon as seen from Earth, and would therefore appear almost star-like to the naked eye ...
The motions of Phobos and Deimos would appear very different from that of Earth's Moon. Speedy Phobos rises in the west, sets in the east, and rises again in just eleven hours, while Deimos, being only just outside synchronous orbit, rises as expected in the east but very slowly. Despite its 30-hour orbit, it takes 2.7 days to set in the west ...
A transit of Deimos from Mars lasts a maximum of about two minutes, due to its relatively rapid orbital period of about 30.3 hours.. Because they orbit Mars in low-inclination equatorial orbits, the shadows of Phobos or Deimos projected onto the surface of Mars exhibit a seasonal variation in latitude.
Voltaire is an impact crater on Mars's moon Deimos and is approximately 3 km (1.9 mi) across. [2] [3] Voltaire crater is named after François-Marie Arouet, a French Enlightenment writer who was better known by the pen name Voltaire, who in his 1752 short story "Micromégas" predicted that Mars had two moons.
Swift is an impact crater on Mars's moon Deimos. It is about 3 km (1.9 mi) in diameter. [2] [3] Swift is named after Jonathan Swift, whose 1726 book Gulliver's Travels predicted the existence of two moons of Mars. [4] Swift is one of two named features on Deimos, the other being Voltaire.
Unlike Deimos, Phobos is heavily cratered, [30] with one of the craters near the equator having a central peak despite the moon's small size. [31] The most prominent of these is the crater Stickney , a large impact crater some 9 km (5.6 mi) in diameter, which takes up a substantial proportion of the moon's surface area.
Scientists have found a new Earth-like planet that could support alien life – just 40 light-years away.. The planet is a remarkable discovery in the search for habitable worlds: it is slightly ...
To support an Earth-like atmosphere for about 4.6 billion years (Earth's current age), a moon with a Mars-like density is estimated to need at least 7% of Earth's mass. [20] One way to decrease loss from sputtering is for the moon to have a strong magnetic field of its own that can deflect stellar wind and radiation belts.