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Irish Mirror
Irish Mirror
World
Ian Mangan

What to know about NASA's set of new missions to Venus

NASA has confirmed that they will be launching two new missions to Venus in an effort to learn more about the fiery planet.

The pair of missions will go ahead between 2028 and 2030 - its first missions to the planet in decades.

A total of $500 million will be spent by the space agency on the two missions.

Nasa administrator Bill Nelson said the missions would offer the "chance to investigate a planet we haven't been to in more than 30 years".

The last probe to visit the planet was the Magellan orbiter in 1990.

One will be called DAVINCI+ (short for Deep Atmosphere Venus Investigation of Noble Gases, Chemistry and Imaging.

The other is VERITAS (an acronym for Venus Emissivity, Radio Science, InSAR, Topography and Spectroscopy).

"Venus is a 'Rosetta stone' for reading the record books of climate change, the evolution of habitability and what happens when a planet loses a long period of surface oceans," James Garvin, chief scientist for NASA's Goddard Space Flight Center in Maryland, said in a statement.

The missions were picked following a peer-review process and were chosen based on their potential scientific value and the feasibility of their development plans.

Nasa administrator Bill Nelson said the missions would offer the "chance to investigate a planet we haven't been to in more than 30 years".

He added: "These two sister missions both aim to understand how Venus became an inferno-like world, capable of melting lead at the surface," Mr Nelson said.

Venus is the second planet from the sun and the hottest planet in the solar system with a surface temperature of 500C - hot enough to melt lead.

Scientists believe Venus may once have harboured seas of water potentially suitable for life, before unknown forces triggered its extreme greenhouse effect, vaporising its oceans.

DAVINCI+ will measure the composition of the dense, hothouse atmosphere of Venus to further understand how it evolved.

VERITAS will map the planet's surface from orbit to help determine its geologic history, NASA said.

After four years in orbit making the first global map of the Venusian surface and charting its gravity field, Magellan was sent plunging to the surface to gather atmospheric data before ceasing operations.

The DAVINCI+ probe will ultimately meet a similar fate.

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