A crowdfunded telescope — best known for offering “space selfies” for backers as an incentive to send money — is now considering a search for alien planets. Planetary Resources Inc. (the proposed asteroid miners) announced a new “stretch goal” for its asteroid-hunting Arkyd-100 telescope.
If the company can raise $2 million — double its original goal — it promises to equip the Arkyd telescope to look at star systems for exoplanets. The project is still short the $1 million required to receive any money, but the target appears to be close enough now to give Planetary Resources confidence that more funds will come for new initiatives.
The motivation for planet hunting was mechanical trouble besetting the famous Kepler space telescope. Kepler recently lost the second of its four reaction wheels, devices that are used to stabilize the telescope in space as it seeks alien worlds.
Artist’s conception of the Kepler Space Telescope. Credit: NASA/JPL-Caltech
Because Kepler needs at least three reaction wheels to point towards targets, its future is uncertain. Some planet searching is still possible with ground-based observatories, however.
“With NASA’s recent equipment failure on the Kepler telescope (RIP, Kepler!), our search for extrasolar planets nearly came to a grinding halt. If we can meet our stretch goal, we can resume some of this progress by enhancing the Arkyd,” Arkyd organizers stated on their Kickstarter campaign website.
“We’re partnering with exoplanet researchers at MIT [the Massachusetts Institute of Technology] to equip citizen scientists like YOU with the tools to join a search that’s captivated us for generations.”
Arkyd would use two methods to hunt down planets:
– Transiting, or seeing the dip in a star’s brightness when a planet passes in front of it;
– Gravitational microlensing, or finding planets by measuring how the gravity of the star (and its planets) distorts light from stars and galaxies behind.
With 19 days to go, Arkyd is at about $857,000 of its preliminary $1 million goal that it must reach to receive any money.
If it can raise $1.3 million, Planetary Resources proposes to build a ground station at an undisclosed “educational partner” that would double the download speed of data from the orbiting observatory.
The project has more than 9,500 backers. Two more stretch goals will be revealed if Arkyd receives 11,000 backers and 15,000 backers, Planetary Resources stated.
Source: Universe Today, story by Elizabeth Howell