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Joined: May 2010
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BellaOnline Editor Renaissance Human
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OP
BellaOnline Editor Renaissance Human
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On this day in 1962 - December 14th - NASA's Mariner 2 made the first successful planetary flyby when it had its encounter with Venus.
The last transmission from the spacecraft was received on January 3, 1963, but it remains in heliocentric orbit.
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Joined: May 2010
Posts: 11,948 Likes: 30
BellaOnline Editor Renaissance Human
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BellaOnline Editor Renaissance Human
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On this day in 2013 - December 14th - the China National Space Administration (CNSA) Chang'e-3 spacecraft landed on the Moon.
The craft was composed of a lander and the Yutu rover. It was the first soft landing on the Moon since the Soviet Union's Luna 24 in 1976.
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Joined: May 2010
Posts: 11,948 Likes: 30
BellaOnline Editor Renaissance Human
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OP
BellaOnline Editor Renaissance Human
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On this day in 1970 - December 15th - Venera 7 was the first spacecraft to make a soft landing on another planet and transmit data.
The Soviet probe survived on Venus for 53 minutes, 20 of them on the surface.
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Joined: May 2010
Posts: 11,948 Likes: 30
BellaOnline Editor Renaissance Human
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OP
BellaOnline Editor Renaissance Human
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On this day in 1826 - December 16th - Italian astronomer Giovanni Battisti Donati was born in Pisa.
He's best remembered for the discovery of several comets, including the one that is named for him. Donati's comet was a spectacular sight in the sky in late 1858.
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Joined: May 2010
Posts: 11,948 Likes: 30
BellaOnline Editor Renaissance Human
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OP
BellaOnline Editor Renaissance Human
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Posts: 11,948 Likes: 30 |
On this day in 1857 - December 16th - American astronomer Edward Emerson Barnard was born in Nashville, Tennessee.
He was one of best visual observers of his day as well as a pioneer of celestial photography. Barnard's Star was named for him. It's a red dwarf star for which Barnard measured its proper motion relative to the Sun.
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Joined: Oct 2017
Posts: 92 Likes: 1
Amoeba
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Amoeba
Joined: Oct 2017
Posts: 92 Likes: 1 |
I saw a video of this on Youtube. But It showed there they landed on a sea. Isn't Venus dry?
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Joined: May 2010
Posts: 11,948 Likes: 30
BellaOnline Editor Renaissance Human
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OP
BellaOnline Editor Renaissance Human
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Yes, Krztypie, Venus is dry. The surface temperature is 872 F (467 C), hot enough to melt lead. (But there aren't any lead puddles there either!) And certainly no seas.
ESA's Huygens probe to Titan was designed to float when it landed, if that were necessary. It wasn't, though Titan does have some hydrocarbon seas and lakes.
I wonder what the video was that you saw.
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Joined: May 2010
Posts: 11,948 Likes: 30
BellaOnline Editor Renaissance Human
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OP
BellaOnline Editor Renaissance Human
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Posts: 11,948 Likes: 30 |
On this day in 1917 - December 16th - British author, futurist, inventor and explorer Arthur C. Clarke was born in. Clarke wrote more than 100 books, and he inspired scientists and space explorers. In honor of his work, the International Astronomical Union named the distance of 36000 km above Earth the Clarke Orbit, and in 2018 they named a mountain on Pluto's moon Charon for him.
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Joined: May 2010
Posts: 11,948 Likes: 30
BellaOnline Editor Renaissance Human
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OP
BellaOnline Editor Renaissance Human
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Posts: 11,948 Likes: 30 |
On this day in 1999 - December 18th - NASA launched the Terra satellite.
Terra was the flagship of the Earth Observation System, a multinational research program to study changes in the Earth and how they could affect life on our planet.
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Joined: May 2010
Posts: 11,948 Likes: 30
BellaOnline Editor Renaissance Human
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OP
BellaOnline Editor Renaissance Human
Joined: May 2010
Posts: 11,948 Likes: 30 |
On this day in 2013 - December 19th - the European Space Agency (ESA) launched its Gaia spacecraft.
Gaia is a space observatory which is measuring the positions and distances of stars with unprecedented accuracy. The mission aims to construct the largest and most precise 3D space catalog ever made.
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