Saturday December 14, 2019
Home Lead Story NASA Chief: M...

NASA Chief: Moon Mission a Step Forward to Reach Mars

The policy calls for the NASA administrator to "lead an innovative and sustainable programme of exploration with commercial and international partners to enable human expansion across the solar system and to bring back to Earth new knowledge and opportunities"

0
//
NASA image.
Just 11 years after Eisenhower authorized NASA, American astronaut Neil Armstrong walked on the moon. Pixabay

NASA’s new head, Jim Bridenstine, has defended the new agency directive to return astronauts to the Moon, saying that the mission will not derail the US goal of becoming the first country to put humans on Mars.

“Our return to the surface of the Moon will allow us to prove and advance technologies that will…(enable) us to land the first Americans on the Red Planet,” the NASA Administrator said on Wednesday during his keynote address at the “Humans to Mars” summit in Washington, DC.

US President Donald Trump in December 2017 signed a change in national space policy that provides for a US-led integrated programme with private sector partners for a human return to the Moon, followed by missions to Mars and beyond.

NASA Chief: Moon Mission a Step Forward to Reach Mars.
Mars. Pixabay

The policy calls for the NASA administrator to “lead an innovative and sustainable programme of exploration with commercial and international partners to enable human expansion across the solar system and to bring back to Earth new knowledge and opportunities”.

In his first major address as NASA administrator, Bridenstine, however, did not disclose any new initiatives by NASA to send humans to the Red Planet, Space.com reported.

Mars and the moon will be complementary initiatives, said Bridenstine, who was sworn in as administrator three weeks ago after NASA went 15 months without a permanent leader.

Also Read: NASA Spacecraft Finds New Type of Magnetic Explosion

“If some of you are concerned that the coming focus is the moon, don’t be,” Bridenstine said.

“We’re doing both the Moon and Mars in tandem, and the missions are supportive of each other,” he added. (IANS)

Next Story

Scientists Create Map of Wind Circulation in the Upper Atmosphere of Mars

Scientists map winds in Mars' upper atmosphere for first time

0
Mars
The new map of Mars winds helps scientists to better understand the workings of the Martian climate. (Representational image). Pixabay

Using data from NASA’s MAVEN spacecraft, researchers have created the first-ever map of wind circulation in the upper atmosphere of Mars.

The new map of Mars winds helps scientists to better understand the workings of the Martian climate, giving them a more accurate picture of its ancient past and its ongoing evolution.

“The observed global circulation provides critical inputs needed to constrain global atmospheric models,” said Mehdi Benna of NASA’s Goddard Space Flight Center in Greenbelt, Maryland.

“These are the same models that are used to extrapolate the state of the Martian climate into the distant past,” added Benna in the first paper published in the journal Science.

MAVEN (Mars Atmosphere and Volatile EvolutioN mission) celebrated the five-year anniversary of its entrance into orbit around Mars on September 21.

Mission Mars
The winds observed in the Martian upper atmosphere are sometimes similar to what we see in global model simulations. (Representational image). Pixabay

The primary scientific goal of the mission is to study what is left of Mars’ atmosphere to determine how, in the distant past, an ocean-covered and potentially habitable Mars became the dry and desolate place it is today.

“The winds observed in the Martian upper atmosphere are sometimes similar to what we see in global model simulations, but other times can be quite different,” said Kali Roeten of University of Michigan.

“These winds can also be highly variable on the timescale of hours, yet in other cases, are consistent throughout the observation period, said Roeten in the second paper published in the Journal of Geophysical Research-Planets.

Upper atmospheric winds on Earth have already been mapped in detail.

Winds drive a series of processes in the atmosphere that can affect the propagation of radio waves, which are crucial for communications purposes for those on the surface, and the prediction of paths satellites will take in their orbit around Earth.

Mapping Martian winds, therefore, is a crucial step towards understanding characteristics of extraterrestrial atmospheres beyond what we know about processes on Earth.

Also Read- Google Assistant Rolls out Interpreter Mode for Smartphones

The upper atmospheric winds on both Earth and Mars are in the planets’ respective thermospheres, which are areas where temperature increases with height.

This discovery was the first detection of topography-induced gravity wave ripples in the thermosphere of any planet, even Earth. (IANS)