Science Fiction Dictionary
A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

 

NASA SEXTANT First With X-Ray Nav In Space

In a technology first, a team of NASA engineers has demonstrated fully autonomous X-ray navigation in space.


(NICER mission over view video)

The demonstration, which the team carried out with an experiment called Station Explorer for X-ray Timing and Navigation Technology, or SEXTANT, showed that millisecond pulsars could be used to accurately determine the location of an object moving at thousands of miles per hour in space — similar to how the Global Positioning System, widely known as GPS, provides positioning, navigation, and timing services to users on Earth with its constellation of 24 operating satellites.

“This demonstration is a breakthrough for future deep space exploration,” said SEXTANT Project Manager Jason Mitchell, an aerospace technologist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “As the first to demonstrate X-ray navigation fully autonomously and in real-time in space, we are now leading the way.”

The SEXTANT technology demonstration, which NASA’s Space Technology Mission Directorate had funded under its Game Changing Program, took advantage of the 52 X-ray telescopes and silicon-drift detectors that make up NASA’s Neutron-star Interior Composition Explorer, or NICER. Since its successful deployment as an external attached payload on the International Space Station in June, it has trained its optics on some of the most unusual objects in the universe.

In the SEXTANT demonstration that occurred over the Veteran’s Day holiday in 2017, the SEXTANT team selected four millisecond pulsar targets — J0218+4232, B1821-24, J0030+0451, and J0437-4715 — and directed NICER to orient itself so it could detect X-rays within their sweeping beams of light. The millisecond pulsars used by SEXTANT are so stable that their pulse arrival times can be predicted to accuracies of microseconds for years into the future.

Science fiction authors put forward the idea of a using regularly pulsating stars quite early; check out the space beacon from George O. Smith's 1952 story Troubled Star, which uses variable stars.

In his 1959 short story The Repairman, Harry Harrison points out that a hyperspace jump requires at least four beacons for a good fix; see the quote in hyperspace beacon.

Via NASA.

Scroll down for more stories in the same category. (Story submitted 1/12/2018)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Space Tech ")

Chrysalis Generation Ship to Alpha Centauri
'This was their world, their planet — this swift-traveling, yet seemingly moveless vessel.' - Nat Schachner, 1934

The First Space Warship For Space Force
'Each of the electrical ships carried about twenty men...' - Garrett P. Serviss, 1898.

Is China Mining Helium-3 On The Moon's Farside?
'...for months Grantline bores had dug into the cliff.' -

Solitary Black Hole Wanders In Space
'...the Hole is something like a vortex or a whirlpool?' - Frank K. Kelly, 1935.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

Science Fiction Timeline
1600-1899
1900-1939
1940's   1950's
1960's   1970's
1980's   1990's
2000's   2010's

Current News

RoboBallet The Dance Of Cooperative Robots
'...an integrated seven-unit robot team.'

Chrysalis Generation Ship to Alpha Centauri
'This was their world, their planet — this swift-traveling, yet seemingly moveless vessel.'

Alexa+ And Its AI Brain Improvements
'What's it do?' he asked. 'It amuses.'

Does CloneRobotics Offer A True Android?
Is this What Little Girls Are Made Of?

Brain Implant Is Able To Capture Your Inner Dialogue
'So you see, you can hide nothing from me.'

Are AIs Going Rogue Like Hal 9000
'I know that you and Frank were planning to disconnect me...'

Animated Tumblebugs On Astounding Cover!
'Gaines and Harvey mounted tumblebugs, and kept abreast of the Cadet Captain...'

LingYuan Vehicle Roof Drones Now Available, ala Blade Runner 2049
Accompanied by a small selection of similar ideas from science fiction.

China Steals Strato Airship Design From Google App Engine
'...war-balloons, or, as it would be more correct to call them, navigable aerostats.'

The First Space Warship For Space Force
'Each of the electrical ships carried about twenty men...'

Biohybrid Jellyfish Explore The Ocean
As predicted, and detailed, by science fiction writers!

Should AIs and AI Robots Demand Rights?
'This robot is a creature... It is a manlike being. Therefore, like any other talking, thinking man, he is entitled to a court trial!'

Robot Learns Human Tool Usage By Imitation Learning
'I got one of those new electronic cameras...'

Companion Caregiver ChatGPT Dolls
'Every Artificial Friend is unique, right?'

'Pregnancy Humanoids' From China Replace Moms
'A great many of these synthetic babies were made...'

Man Builds 200 Foot Basement Firing Range
'The basement was huge... carved deep into the rock.'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.