Natural Science 301 Guidelines

This is an open forum area for all members for discussions on all issues of science and origins. This area will and does get volatile at times, but we ask that it be kept to a dull roar, and moderators will intervene to keep the peace if necessary. This means obvious trolling and flaming that becomes a problem will be dealt with, and you might find yourself in the doghouse.

As usual, Tweb rules apply. If you haven't read them now would be a good time.

Forum Rules: Here
See more
See less

One Billion Stars, 30,000 Light Years, And Petabytes Of Data - Our Universe

  • Filter
  • Time
  • Show
Clear All
new posts

  • One Billion Stars, 30,000 Light Years, And Petabytes Of Data - Our Universe

    Source: no welcome

    One Billion Stars, 30,000 Light Years, And Petabytes Of Data

    A mission by the European Space Agency to measure and map the Milky Way promises to give astronomers a precise, detailed, and three-dimensional view of our galaxy. The five-year project will generate more than a petabyte of data on the makeup, position, motion, and other characteristics of a billion stars.

    The European Space Agency (ESA) launched its data-collecting satellite—equipped with two telescopes, photon detectors, video processing unit, Sun shield, and other instruments—on December 19. In early January, the satellite, called Gaia, arrived at a point in space 1.5 million kilometers from Earth known as “L2,” from which it will carry out its surveillance of the Galaxy.

    Gaia will measure the spectra and light intensity of stars and determine their velocity using distances and motions. It will look for planets (by detecting “tiny wobbles” in a host star’s position), exploding stars, failed stars known as brown dwarfs, asteroids, comets, and “Planet X,” a hypothetical tenth planet in our solar system.

    In doing so, ESA’s satellite will generate huge volumes of data. “It will single handedly increase the data we possess about where stars are located in space by thousands of times compared to all previous such measurements in history,” writes the Boston Globe.

    The Gaia Data Processing and Analysis Consortium, a group of more than 400 scientists at institutions across Europe, will use the data to study the solar system, galactic astronomy, cosmology, and more. “The data processing ground segment is a fundamental element of the mission,” according to ESA.

    The astrometry data collected by Gaia will augment scientific observations made by powerful ground-based telescopes. The University of Cambridge’s Institute of Astronomy recently reported that new evidence shows that older stars are in the inner regions of the Milky Way and younger stars in the outer regions, lending support to theories that “our galaxy grew from the inside-out.”

    © Copyright Original Source
    Glendower: I can call spirits from the vasty deep.
    Hotspur: Why, so can I, or so can any man;
    But will they come when you do call for them? Shakespeare’s Henry IV, Part 1, Act III:

    go with the flow the river knows . . .


    I do not know, therefore everything is in pencil.

Related Threads


Topics Statistics Last Post
Started by shunyadragon, Yesterday, 08:37 PM
0 responses
Last Post shunyadragon  
Started by shunyadragon, 06-13-2022, 11:16 AM
0 responses
Last Post shunyadragon  
Started by shunyadragon, 06-12-2022, 08:26 AM
11 responses
1 like
Last Post shunyadragon  
Started by rogue06, 06-12-2022, 07:55 AM
20 responses
1 like
Last Post Teallaura  
Started by lee_merrill, 04-30-2022, 12:27 PM
90 responses
Last Post shunyadragon