Category: venus

Moon and Venus crescents Image credit: Pál Vár…

Moon and Venus crescents 

Image credit: Pál Váradi Nagy

On August 8, 1978, the Pioneer Venus Multiprob…

On August 8, 1978, the Pioneer Venus Multiprobe spacecraft launched to study Venus, a planet that has an atmosphere 100 times denser than Earth’s atmosphere and is hotter than the melting point of zinc and lead. Pioneer Venus Multiprobe was composed of five components: the main spacecraft, the large probe and three identical small probes named North, Day and Night. Built by the Hughes Company in El Segundo, California, and launched on an Atlas-Centaur rocket from Cape Canaveral Air Force Station in Florida, the Pioneer Venus Multiprobe project was managed by NASA’s Ames Research Center in California’s Silicon Valley.

Carrying seven experiments and fitted with a parachute to slow its descent into the atmosphere, the large probe studied the composition of Venus’ atmosphere and clouds. In addition, the large probe measured the distribution of infrared and solar radiation. The three small probes were designed without parachutes, each carrying six experiments. Each probe targeted different parts of Venus. North entered Venus at the high northern latitudes, Night targeted the night side at mid-southern latitudes, and Day targeted the day side at mid-southern latitudes. The main spacecraft carried an additional two experiments designed to study Venus’ upper atmosphere. The five probes collected detailed information about atmospheric composition, circulation and energy balance.

The large probe separated from the main spacecraft 123 days after launch, on November 16, followed by the small probes on November 20, reaching and entering Venus’ atmosphere December 9. While not expected to survive their fiery descent into the dense Venusian atmosphere, all four of the probes transmitted data down to the surface with the Day probe transmitting from the surface for over an hour.

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Crescent Moon and Venus by Alexander Kozik

Crescent Moon and Venus

by

Alexander Kozik

The Moon, Venus and Mercury at Dawn 1 – Feb …

The Moon, Venus and Mercury at Dawn 1 – Feb 7, 2016

image credit:

Joseph Brimacombe

Moon near Aldebaran & Venus by Peter …

Moon near Aldebaran & Venus

by Peter Lademann

Venus, Jupiter and Mars at Dawn – Oct 22, 20…

Venus, Jupiter and Mars at Dawn – Oct 22, 2015

Image credit: Joseph Brimacombe

Transit of Venus Image credit: Richard Orr

Transit of Venus 

Image credit:

Richard Orr

Venera

Venera

The Venera series space probes were developed by the Soviet Union between 1961 and 1984 to gather data from Venus, Venera being the Russian name for Venus. As with some of the Soviet Union’s other planetary probes, the later versions were launched in pairs with a second vehicle being launched soon after the first of the pair.

Ten probes from the Venera series successfully landed on Venus and transmitted data from the surface of Venus, including the two Vega program and Venera-Halley probes. In addition, thirteen Venera probes successfully transmitted data from the atmosphere of Venus.

Among the other results, probes of the series became the first human-made devices to enter the atmosphere of another planet (Venera 4 on October 18, 1967), to make a soft landing on another planet (Venera 7 on December 15, 1970), to return images from the planetary surface (Venera 9 on June 8, 1975), and to perform high-resolution radar mapping studies of Venus (Venera 15 on June 2, 1983). The later probes in the Venera series successfully carried out their mission, providing the first direct observations of the surface of Venus. Since the surface conditions on Venus are extreme, the probes only survived on the surface for durations varying between 23 minutes (initial probes) up to.

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The Moon is lit by the golden colours of sunse…

The Moon is lit by the golden colours of sunset and Venus is just about to get occulted disappearing behind the dark limb of the Moon.

Image credit: Luis Argerich

Night sky just after sunset on March 24, 2012 …

Night sky just after sunset on March 24, 2012 with crescent moon and backlight, Jupiter, Venus and the Pleiades.

by

Ritzelmut