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The Kepler Space Telescope is almost out of fuel, which means its life is coming to an end, NASA announced today. The space agency says it put the planet-hunting spacecraft into a “hibernation” safe mode this past Monday, and that a plan to reactivate Kepler next month could burn out whatever fuel remains.
NASA launched the Kepler Space Telescope in 2009 in an effort to learn more about the number and frequency of planets in our galaxy. To the delight of many, scientists using Kepler have found an abundance of exoplanets, or planets outside our solar system. The spacecraft, which is some 94 million miles away from Earth, has scanned just a small section of our galactic neighborhood, but its efforts have led scientists to discover 2,650 confirmed planets so far.
They’ve come in all shapes and sizes, too. The planets that researchers have turned up range from big and weird — like a Jupiter-sized planet orbiting a binary star system — to ones that are closer in size and orbit to Earth. Each discovery has taught us more about how planets form, how many kinds of planets there are, and even how our planet came to be. And many rewards still lie in Kepler’s bounty. There are thousands more unconfirmed discoveries, and researchers continue to find new ways to rummage through Kepler’s data trove.
NASA says it plans to turn Kepler back on in early August, when it will order the spacecraft to point its antenna at Earth to download the data from its most recent survey of the sky. It’s not clear if there’s enough fuel to do that transfer. If there is, though, once the transfer’s complete, NASA plans to start what will be the 19th discrete “observation campaign” of Kepler’s secondary “K2” mission, which was started in 2014. The maneuvers required to point the antenna toward Earth are the most fuel-intensive ones that Kepler performs, and at any point, the spacecraft’s tank could finally run dry.
NASA knew that Kepler would one day run out of fuel, and when it started the K2 mission the agency originally forecast being able to squeeze just 10 observation campaigns out of what was left in the tank. But putting the spacecraft in safe mode is a sign that Kepler is truly running on fumes. So now, “returning the data back to Earth is the highest priority for the remaining fuel,” NASA says.
https://www.theverge.com/2018/7/6/17541886/nasa-kepler-fuel-safe-mode-life
NASA launched the Kepler Space Telescope in 2009 in an effort to learn more about the number and frequency of planets in our galaxy. To the delight of many, scientists using Kepler have found an abundance of exoplanets, or planets outside our solar system. The spacecraft, which is some 94 million miles away from Earth, has scanned just a small section of our galactic neighborhood, but its efforts have led scientists to discover 2,650 confirmed planets so far.
They’ve come in all shapes and sizes, too. The planets that researchers have turned up range from big and weird — like a Jupiter-sized planet orbiting a binary star system — to ones that are closer in size and orbit to Earth. Each discovery has taught us more about how planets form, how many kinds of planets there are, and even how our planet came to be. And many rewards still lie in Kepler’s bounty. There are thousands more unconfirmed discoveries, and researchers continue to find new ways to rummage through Kepler’s data trove.
NASA says it plans to turn Kepler back on in early August, when it will order the spacecraft to point its antenna at Earth to download the data from its most recent survey of the sky. It’s not clear if there’s enough fuel to do that transfer. If there is, though, once the transfer’s complete, NASA plans to start what will be the 19th discrete “observation campaign” of Kepler’s secondary “K2” mission, which was started in 2014. The maneuvers required to point the antenna toward Earth are the most fuel-intensive ones that Kepler performs, and at any point, the spacecraft’s tank could finally run dry.
NASA knew that Kepler would one day run out of fuel, and when it started the K2 mission the agency originally forecast being able to squeeze just 10 observation campaigns out of what was left in the tank. But putting the spacecraft in safe mode is a sign that Kepler is truly running on fumes. So now, “returning the data back to Earth is the highest priority for the remaining fuel,” NASA says.
https://www.theverge.com/2018/7/6/17541886/nasa-kepler-fuel-safe-mode-life
