THIS Nasa photo obtained on Tuesday shows Ingenuity helicopter on Mars.—AFP
THIS Nasa photo obtained on Tuesday shows Ingenuity helicopter on Mars.—AFP

WASHINGTON: Nasa’s Ingenuity mini-helicopter survived its first night alone on the frigid surface of Mars, the US space agency said, hailing it as “a major milestone” for the tiny craft as it prepares for its first flight.

The ultra-light aircraft was dropped on the surface on Saturday after detaching from the belly of the Perseverance rover, which touched down on the Red Planet on Feb 18.

Detached from the Perseverance, Ingenuity had to rely on its own solar-powered battery to run a vital heater to protect its unshielded electrical components from freezing and cracking during the bitter Martian night, when temperatures can plunge as low as minus 90 degrees Celsius.

Making it through the frigid Martian night was “a major milestone for the small rotorcraft”, Nasa said in a statement on Monday.

“This is the first time that Ingenuity has been on its own on the surface of Mars,” said MiMi Aung, Ingenuity project manager at Nasa’s Jet Propulsion Laboratory.

“But we now have confirmation that we have the right insulation, the right heaters, and enough energy in its battery to survive the cold night, which is a big win for the team. We’re excited to continue to prepare Ingenuity for its first flight test.”

Over the coming days, Ingenuity will undergo tests of its rotor blades and motors.

If all goes well, Ingenuity is expected to make its first flight attempt no earlier than the evening of April 11, the Jet Propulsion Laboratory said.

It will be the first aircraft to attempt powered, controlled flight on another planet.

Tribute to Wright brothers

Ingenuity is carrying a small piece of cloth that covered one of the wings of the Wright brothers’ first aircraft which achieved the first powered flight on Earth at Kitty Hawk in 1903, to pay tribute to the milestone.

Its attempt will also coincide with the 60th anniversary of the first human space flight, by Soviet cosmonaut Yuri Gagarin on April 12, 1961, and 40th anniversary of the April 12, 1981, launch of the first space shuttle, Columbia.

Ingenuity will be attempting to fly in an atmosphere that is one percent the density of Earth’s, which makes achieving lift harder -- but will be assisted by gravity that is one-third of our planet’s.

The first flight will involve climbing at a rate of about three feet per second to a height of 10 feet, hovering there for 30 seconds, then descending back to the surface.

Ingenuity will be taking high-resolution photography as it flies from its “airfield” in the Jezero Crater.

A series of flights are planned over its mission lasting 30 Martian sols.

“Our 30-sol test schedule is frontloaded with exciting milestones,” said Teddy Tzanetos, Ingenuity deputy operations lead.

“Whatever the future holds, we will acquire all the flight data we can within that timeframe.”

The 1.8-kilogram rotorcraft cost Nasa around $85 million to develop and is considered a proof of concept that could revolutionise space exploration.

Future aircraft could cover ground much quicker than rovers, and explore more rugged terrain.

Published in Dawn, April 7th, 2021

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