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NASA budget jumps $1.6 bn above White House request

NASA's will get $20.7 billion -- $1.1 billion more than 2017 funding and $1.6 billion above the White House request

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NASA Seeks Partnership With US Industry to Develop First Gateway Element
NASA seeks US partners to develop reusable systems for Moon mission, Pixabay

NASA’s will get $20.7 billion — $1.1 billion more than 2017 funding and $1.6 billion above the White House request — under a spending bill that cleared Congress this week and was signed by President Trump on Friday.

A big beneficiary will be the planned rocket to take astronauts into deep space and onto Mars, the Space Launch System (SLS), which will get $2.15 billion, and the Orion crew capsule, which will launch on top of the SLS, will get $1.35 billion, AL.com reported.

ISS is a permanent base for astronauts stationed in the outer sky. Wikimedia Commons
This funding will help NASA in its research. Wikimedia Commons

According to a report spaceflightnow.com, the NASA funding was part of a $1.3 trillion federal spending package that keeps the government running through the end of fiscal year 2018 — September 30 — after multiple stopgap budgets in recent months.

The budget provides $350 million for construction of a second SLS mobile launch platform, a project which, NASA believes, could shorten the gap between the first and second Space Launch System flights. Funding for a second SLS launch platform was not included in the White House’s fiscal year 2019 budget proposal.

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Robert Lightfoot, NASA’s outgoing acting administrator set to retire at the end of April, told a House subcommittee on March 7 that there was insufficient money in the agency’s budget to build a second SLS platform without delaying or canceling other projects.

While responding to a question during the hearing, Lightfoot said that a second SLS mobile launch platform would be better for the program in an “ideal world.” “I could fly humans quicker, probably in the 2022 timeframe,” with a second mobile launch platform, Lightfoot said. IANS

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NASA Telescope Captures Record-Breaking Thermonuclear X-Ray Flash: ’Burst was Outstanding’

The observations reveal many phenomena that have never been seen together in a single burst

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NASA, Telescope, Thermonuclear
The X-ray burst, the brightest seen by NICER so far, came from an object named "J1808". Wikimedia Commons

NASA has detected a massive thermonuclear explosion coming from outer space, caused by a massive thermonuclear flash on the surface of a pulsar — the crushed remains of a star that long ago exploded as a supernova.

The explosion released as much energy in 20 seconds as the Sun does in nearly 10 days.

NASA’s Neutron Star Interior Composition Explorer (NICER) telescope on the International Space Station (ISS) detected a sudden spike of X-rays on August 20, reports the US space agency.

The X-ray burst, the brightest seen by NICER so far, came from an object named “J1808”.

NASA, Telescope, Thermonuclear
The explosion released as much energy in 20 seconds as the Sun does in nearly 10 days. Pixabay

The observations reveal many phenomena that have never been seen together in a single burst.

In addition, the subsiding fireball briefly brightened again for reasons astronomers cannot yet explain.

“This burst was outstanding. We see a two-step change in brightness, which we think is caused by the ejection of separate layers from the pulsar surface, and other features that will help us decode the physics of these powerful events,” said lead researcher Peter Bult, an astrophysicist at NASA’s Goddard Space Flight Center in Maryland.

The detail NICER captured on this record-setting eruption will help astronomers fine-tune their understanding of the physical processes driving the thermonuclear flare-ups of it and other bursting pulsars.

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“J1808” is located about 11,000 light-years away in the constellation Sagittarius.

It spins at a dizzying 401 rotations each second, and is one member of a binary system. Its companion is a brown dwarf, an object larger than a giant planet yet too small to be a star. A steady stream of hydrogen gas flows from the companion toward the neutron star, and it accumulates in a vast storage structure called an accretion disk.

Astronomers employ a concept called the “Eddington limit”, named after English astrophysicist Sir Arthur Eddington, to describe the maximum radiation intensity a star can have before that radiation causes the star to expand.

This point depends strongly on the composition of the material lying above the emission source.

NASA, Telescope, Thermonuclear
NASA’s Neutron Star Interior Composition Explorer (NICER) telescope on the International Space Station (ISS) detected a sudden spike of X-rays on August 20, reports the US space agency. Pixabay

“Our study exploits this longstanding concept in a new way,” said co-author Deepto Chakrabarty, a professor of physics at MIT.

“We are apparently seeing the Eddington limit for two different compositions in the same X-ray burst. This is a very powerful and direct way of following the nuclear burning reactions that underlie the event.”

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A paper describing the findings has been published by The Astrophysical Journal Letters. (IANS)