Rock & Gem
Observing Earth from Space Just Got Harder
A recent issue of the journal Science reports that a pair of satellites dubbed Sentinel 1-A and Sentinel 1-B maintained by the European Space Agency has been mapping the Earth’s surface via radar to note displacements caused by such geological activities as volcanoes and earthquakes and melting ice. But Sentinel 1-B recently went dark.
Never fear. Sentinel 1-C has been in the wings for some time, with a projected launch date of mid-2023. e loss of Sentinel 1-B may well accelerate this launch date to once again open our eyes on Earth from above.