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Tag: Satellites

Iceye satellites return super-sharp radar images

Iceye satellites return super-sharp radar images

Science
Finnish space start-up Iceye has once again given an impressive demonstration of its novel technology's capabilities.The company's radar satellites are now returning sub-1m resolution images of the Earth's surface.This level of performance is expected from traditional spacecraft that weigh a tonne or more and cost in excess of one hundred million euros.But Iceye's breakthrough satellites are the size of a suitcase and cost only a couple of million to build.The Helsinki-based outfit is leading a group of "New Space" companies that aim to fly constellations of such radar imagers.This is something that would have seemed technically very challenging and prohibitively expensive just a few years ago. ...
Spy satellites reveal extent of Himalayan glacier loss

Spy satellites reveal extent of Himalayan glacier loss

Science
Images from Cold War spy satellites have revealed the dramatic extent of ice loss in the Himalayan glaciers.Scientists compared photographs taken by a US reconnaissance programme with recent spacecraft observations and found that melting in the region has doubled over the last 40 years.The study shows that since 2000, glaciers heights have been shrinking by an average of 0.5m per year.The researchers say that climate change is the main cause."From this study, we really see the clearest picture yet of how Himalayan glaciers have changed," Joshua Maurer, from Columbia University's Lamont-Doherty Earth Observatory in New York, told BBC News. The research is published in the journal Science Advances. ...
SpaceX puts up 60 internet satellites

SpaceX puts up 60 internet satellites

Science
Media playback is unsupported on your device The SpaceX company has begun the roll-out of its orbiting broadband system.A Falcon-9 rocket launched from Cape Canaveral in Florida late on Thursday, packed with 60 satellites capable of giving users on the ground high-speed connections to the internet.Entrepreneur Elon Musk's firm aims eventually to loft nearly 12,000 spacecraft for its "Starlink" network.SpaceX is one of several commercial outfits with permission to fly an internet mega-constellation.Others include the UK-based start-up OneWeb, which began its roll-out in February with six operational spacecraft.Online retailer Amazon also has ambitions in this market. It's working on a 3,200-satellite proposal known as Project Kuiper. All the co...
Watch: SpaceX releases Israeli moon lander, pair of satellites into orbit after successful launch

Watch: SpaceX releases Israeli moon lander, pair of satellites into orbit after successful launch

Science
Feb. 21 (UPI) -- SpaceX launched its Falcon 9 rocket Thursday evening with a pair of satellites and an Israeli moon lander aboard. All three were successfully released into orbit. Blastoff occurred right on time at 8:45 p.m. ET. Just a few minutes after Falcon 9 launched from Cape Canaveral, the first and second stages separated and the booster stage fell back to Earth, using its thrusters to slow its reentry and land safely on SpaceX's Of Course I Still Love You droneship. "Successful deployment of the SpaceIL lunar lander confirmed, starting the spacecraft's two-month voyage to the Moon," SpaceX confirmed on Twitter, some 35 minutes after liftoff. The Israeli-made lander was developed by SpaceIL, a privately-funded nonprofit. The group of scientists and engineers were originally part o...