Tuesday, September 29, 2020

NASA probe spots Martian night sky pulsing in UV light

Must Read

Microsoft joins telecommunications industry to roll out 5G, more

San Francisco, Sep 28 : Microsoft on Monday announced a partnership with the telecommunication industry globally to unlock the...

In-form Delhi eye hat-trick of wins as they play SRH (IPL Match 11 Preview)

Abu Dhabi, Sep 28 (IANS/GloFans) The Shreyas Iyer-led Delhi Capitals (DC), high on confidence after two wins on the...

Bigg Boss 13 winner Sidharth Shukla’s net worth is something huge!

Image Source: Sidharth Shukla Instagram Mumbai: Television’s heartthrobe Sidharth Shukla became popular with his impeccable and strong performance inside...

Washington: New data from NASA’s MAVEN spacecraft has shown vast areas of the Martian night sky pulsing in ultraviolet light.

However, do not expect the future Mars astronauts to see them with naked eyes as ultraviolet light is invisible to the human eye but detectable by specialised instruments.

The new results, published in the Journal of Geophysical Research — Space Physics, are being used to illuminate complex circulation patterns in the Martian atmosphere.

The MAVEN team was surprised to find that the atmosphere pulsed exactly three times per night, and only during Mars’ spring and autumn.

The new data also revealed unexpected waves and spirals over the winter poles, while also confirming the Mars Express spacecraft results that this nightglow was brightest over the winter polar regions.

“MAVEN’s images offer our first global insights into atmospheric motions in Mars’ middle atmosphere, a critical region where air currents carry gases between the lowest and highest layers,” said lead author of the paper Nick Schneider of the University of Colorado’s Laboratory for Atmospheric and Space Physics (LASP), Boulder, Colorado.

The brightenings occur where vertical winds carry gases down to regions of higher density, speeding up the chemical reactions that create nitric oxide and power the ultraviolet glow.

“The ultraviolet glow comes mostly from an altitude of about 70 kilometres, with the brightest spot about a thousand kilometres across, and is as bright in the ultraviolet as Earth’s northern lights”

said Zac Milby, also of the Laboratory for Atmospheric and Space Physics

“Unfortunately, the composition of Mars’ atmosphere means that these bright spots emit no light at visible wavelengths that would allow them to be seen by future Mars astronauts. Too bad: the bright patches would intensify overhead every night after sunset, and drift across the sky at 300 km per hour.”

The pulsations reveal the importance of planet-encircling waves in the Mars atmosphere, said the study.

The number of waves and their speed indicates that Mars’ middle atmosphere is influenced by the daily pattern of solar heating and disturbances from the topography of Mars’ huge volcanic mountains.

Subscribe us on The Siasat Daily - Google News

Latest News

Microsoft joins telecommunications industry to roll out 5G, more

San Francisco, Sep 28 : Microsoft on Monday announced a partnership with the telecommunication...

In-form Delhi eye hat-trick of wins as they play SRH (IPL Match 11 Preview)

Abu Dhabi, Sep 28 (IANS/GloFans) The Shreyas Iyer-led Delhi Capitals (DC), high on confidence after two wins on the trot, will be up against...

Bigg Boss 13 winner Sidharth Shukla’s net worth is something huge!

Image Source: Sidharth Shukla Instagram Mumbai: Television’s heartthrobe Sidharth Shukla became popular with his impeccable and strong performance inside the controversial Bigg Boss house....

Stuck to Deepika’s drugs case, here are the issues we are ignoring!

New Delhi: In case you have been completely cut off from TV news for a few days, let us tell you about some big...

It’s a baby boy for Joaquin Phoenix and Rooney Mara!

Washington: Hollywood star Joaquin Phoenix has had a baby son with actor Rooney Mara — naming him in tribute to his late movie star...

More Articles Like This