Meteorologists use satellites, land observatories and historical data to provide information about the weather. 气象学家使用卫星、上天文台和历史资料来提供有关天气的信息。 来自互联网5 mariner n.水手号不载人航天探测器,海员,航海者 参考例句: A smooth sea never made a skillful mariner.平静的大海决不...
There are several Web sites that show the current position of Mars (and the other planets) in the sky. More detailed and customized charts can be created with a planetarium program. Mars' Satellites Mars has two tiny satellites which orbit very close to the martian surface: Distance Radius ...
Both satellites were discovered in 1877 by Asaph Hall, and are named after the characters Phobos (panic/fear) and Deimos (terror/dread) who, in Greek mythology, accompanied their father Ares, god of war, into battle. Ares was known as Mars to the Romans. From the surface of Mars, the ...
Dr Root and colleagues from TU Delft and Utrecht University used tiny deviations in the orbits of satellites to investigate the gravity field of Mars and find clues about the planet’s internal mass distribution. This data was fed into models that use new observations from NASA’s Insight missio...
We've already sent a number of spacecraft to Mars, starting with satellites many decades ago. Then there were landers, where satellites landed on the surface and sent data back to Earth. Then we sent the rovers. Little robot cars that drive around on Mars, so we've already successfully ...
A region inside of the orbit of Phobos and ±350 km about the Mars Equatorial plane was searched. No evidence of rings or other satellites was found in this region about Mars.ThomasC.DuxburyandAdrianaC.OcampoSDOSIcarusDuxbury, T. C. and A. C. Ocampo, Mars: satellite and ring search ...
A number of Martian atmospheric trace species have been reported in the literature, using the IRIS infrared spectrometer aboard Mariner 9 (Maguire1977), ground-based infrared spectroscopy (Beer et al.1971; Villanueva et al.2013), ground-based millimeter spectroscopy (Encrenaz et al.1991), and HI...
The surface of Phobos also possesses an intricate pattern of grooves, which may be cracks that formed after the impact created the moon's largest crater — a hole about 6 miles (10 km) wide, or nearly half the width of Phobos. The two Martian satellites always show the same face to ...
pattern of grooves, which may be cracks that formed after the impact created the moon's largest crater — a hole about 6 miles (10 km) wide, or nearly half the width of Phobos. The two Martian satellites always show the same face to their parent planet, just as our moon does to ...
help to make the Red Planet the most earthlike of all the other planets, even though it has only 28% of the Earth's surface area and less than 38% of its gravity. Mars has two small natural satellites:PhobosandDeimos. Orbital and physical characteristics are given in Table 1, backmatter...