Tonight's Sky
Sun
Sun
Moon
Moon
Mercury
Mercury
Venus
Venus
Mars
Mars
Jupiter
Jupiter
Saturn
Saturn

Tonight's Sky — Change location

OR

Searching...

Tonight's Sky — Select location

Tonight's Sky — Enter coordinates

° '
° '

Web Extra: Inside Gaia's one-billion-pixel camera

The European Space Agency is using the most powerful camera ever flown in space to create a precise 3-D map of the Milky Way.
RELATED TOPICS: SPACECRAFT
Gaia spacecraft
Artist's impression of the Gaia spacecraft.
ESA
The European Space Agency plans to use its latest spacecraft, Gaia, to capture the light of 1 billion stars. And once is not enough. The telescope will return repeatedly to stars, imaging them as many as 70 times in its quest to create the most precise map ever of our Milky Way Galaxy.

The telescope, which entered Earth orbit in 2013, will make use of unprecedented camera technology. Containing nearly 1 billion pixels, Gaia boasts the most powerful imager ever flown in space. The instrument will allow it to precisely measure the positions and movements of each star in its field, shedding new light on our galactic neighborhood.
Credit: ESA - C. Carreau
0

JOIN THE DISCUSSION

Read and share your comments on this article
Comment on this article
Want to leave a comment?
Only registered members of Astronomy.com are allowed to comment on this article. Registration is FREE and only takes a couple minutes.

Login or Register now.
0 comments
ADVERTISEMENT

FREE EMAIL NEWSLETTER

Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. View our Privacy Policy.

ADVERTISEMENT
ADVERTISEMENT
RCLP_ASY_0301_mediumrectangle

Untangle the mysteries of our solar system and its moons with this free download.

Find us on Facebook