Saturday, Feb 16 2019 | Time 17:18 Hrs(IST)
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  • Oppn urges PM to call meeting of chief's of all parties on Pulwama terror attack
  • Kenyan police question Australian over rounds of ammunition
  • Two people die, 5 injured in road mishap in Punjab
  • President to attend on Sunday closing ceremony of Agri Leadership Summit at Sonepat
  • 22 militants killed in airstrikes in central Afghanistan
  • Vidarbha lift Irani Cup for second consecutive time
  • Sacrifices shall not go in vain, will avenge Pulwama deaths, assures PM Modi
  • Substituting Punjabi with Sanskrit as 2nd language in HP schools, denial of rights: AAP
  • Communal harmony necessary to fight terrorism: Mulayam Singh Yadav
  • Four drug peddlers arrested with 2,100 boxes of illicit liquor in UP
  • Three killed in traffic accident in SE France
  • MHA issues advisory to all states to ensure safety & security of people
  • EJAC protests in Srinagar against attack on Kashmiris in Jammu
  • MHA issues advisory to all states to ensure safety & security of people
  • All party meet says country stands with forces in fighting terror, Home Min says Govt will take war against Pak to its logical conclusion
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NASA turns a Mars sniffer into data relay satellite for rovers

Washington, Feb 11 (UNI) NASA announced on Monday that its atmosphere sniffer orbiting Mars would get closer to the red planet Monday to become a data-relay satellite for the US space agency's Mars 2020 rover to be launched next year.

The operation will reduce the highest point of the spacecraft's elliptical orbit from 6,200 to 4,500 kilometers above the surface, according to NASA's Goddard Space Flight Center.

Over the next few months, NASA engineers will take advantage of the drag of the Mars' upper atmosphere to slow the spacecraft down gradually, orbit by orbit.

The orbit of the four-year-old spacecraft called Mars Atmosphere and Volatile Evolution (MAVEN) orbit will not be drastically shorter than its present orbit, but even this small change will significantly improve its communications capabilities.

"It's like using your cell phone," said Bruce Jakosky, MAVEN principal investigator from the University of Colorado, Boulder. "The closer you are to a cell tower, the stronger your signal."

Also, coming in about 1,500 kilometers closer will allow the orbiter to circle Mars more frequently: 6.8 orbits per Earth day compared with 5.3 previously, thus communicating with the Mars rovers more frequently.

At unoccupied time, MAVEN will continue to study the structure and composition of the upper atmosphere of Mars.

"The MAVEN spacecraft has done a phenomenal job teaching us how Mars lost its atmosphere and providing other important scientific insights on the evolution of the Martian climate," said Jim Watzin, director of NASA's Mars Exploration Program.

The MAVEN has completed its two-year mission in space, but its fuel allows it to last through 2030, according to NASA.

The orbiter carries an ultra high-frequency radio that allows it to relay data between Earth and rovers or landers on Mars, including the Curiosity rover.

NASA engineers will begin carefully lowering the lowest part of the spacecraft's orbit into the Martian upper atmosphere over the next few days by firing its thrusters.

The spacecraft will circle Mars at this lower altitude about 360 times over the next 2.5 months, slowing down slightly with each pass through the atmosphere, according to NASA.
UNI XC-RHK 2248
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Mueller demands 24 years sentence for Manafort

16 Feb 2019 | 2:31 PM

Washington, Feb 16 (UNI) Prosecutors for current Special Counsel of the investigation into Russian interference in the 2016 United States elections, Robert Mueller has urged a federal judge in Virginia to impose a strict prison sentence for former President Donald Trump's campaign manager, Paul Manafort, after a jury last year convicted him on eight counts of bank and tax fraud.

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US's Aurora shooting leaves five dead; gunmen killed

US's Aurora shooting leaves five dead; gunmen killed

16 Feb 2019 | 2:15 PM

Washington, Feb 16 (UNI) Five people were killed and as many policemen injured in a shooting in the US State of Illinois, late on Friday night.

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US's Aurora shooting leaves five dead; gunmen killed

16 Feb 2019 | 1:50 PM

Washington, Feb 16 (UNI) Five people were killed and as many policemen injured in a shooting in the US State of Illinois, late on Friday night.

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IARC and WHO join forces to reduce inequalities in childhood cancer

16 Feb 2019 | 1:27 PM

Lyon (France), Feb 16 (UNI) To help better understand and fight childhood cancer, the International Agency for Research on Cancer (IARC) has joined the recently formed World Health Organization (WHO) Global Initiative for Childhood Cancer.

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Country of residence is the best predictor of outcome for children with cancer: UN

16 Feb 2019 | 1:06 PM

United Nations, Feb 16 (UNI) UN has termed country of residence as the best predictor of outcome for children with cancer.

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