Nasa to send two robotic missions to Venus

3 June 2021, 06:54

Venus
Venus. Picture: PA

Earth’s closest neighbour is also the solar system’s hottest planet.

Nasa has announced two robotic missions to Venus after decades of exploring other worlds.

The space agency will return to Earth’s closest neighbour which is also the solar system’s hottest planet, new Nasa administrator Bill Nelson said in his first major address to employees.

“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.

Nasa administrator Bill Nelson speaks
Bill Nelson announced the missions in his first address since taking charge of Nasa (Bill Ingalls/Nasa/AP)

One mission named DaVinci Plus will analyse the thick, cloudy Venusian atmosphere in an attempt to determine whether the inferno planet ever had an ocean and was possibly habitable. A small craft will plunge through the atmosphere to measure the gases.

It will be the first US-led mission to the Venusian atmosphere since 1978.

The other mission, called Veritas, will seek a geologic history by mapping the rocky planet’s surface.

“It is astounding how little we know about Venus,” but the new missions will give fresh views of the planet’s atmosphere, made up mostly of carbon dioxide, down to the core, Nasa scientist Tom Wagner said in a statement. “It will be as if we have rediscovered the planet.”

The agency’s top science official, Thomas Zurbuchen, calls it “a new decade of Venus.”

Each mission — launching sometime around 2028 to 2030 — will receive 500 million dollars (£350 million) for development under Nasa’s Discovery programme.

The missions beat out two other proposed projects, to Jupiter’s moon Io and Neptune’s icy moon Triton.

The US and the former Soviet Union sent multiple spacecraft to Venus in the early days of space exploration.

Nasa’s Mariner 2 performed the first successful flyby in 1962, and the Soviets’ Venera 7 made the first successful landing in 1970.

In 1989, Nasa used a space shuttle to send its Magellan spacecraft into orbit around Venus.

The European Space Agency put a spacecraft around Venus in 2006.

By Press Association

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