Two Satellites Almost Crashed. Here’s How They Dodged It

Two Satellites Almost Crashed. Here’s How They Dodged It

Two small satellites, whirling through Earth's low orbits, had “the potential for a conjunction.” Those are the words Major Cody Chiles, spokesperson for the Joint Force Space Component Command, uses to mean "the chance of a collision." The satellites, one from a company called Capella Space and the other from Spire Global, could smack into each other.

This App Lets Kenya's Farmers Monitor Crops From Eyes in the Sky

This App Lets Kenya's Farmers Monitor Crops From Eyes in the Sky

Using free satellite data from the UN, PlantVillage can monitor biomass on a plot of land, giving small-scale farmers insight into how their crops are developing.

A Strange Kind of Data Tracks the Weather—and Pirate Ships

A Strange Kind of Data Tracks the Weather—and Pirate Ships

A Strange Kind of Data Tracks the Weather—and Pirate Ships Spire A group of apes is called a shrewdness; a group of ferrets is called a business; a group of small satellites is called a constellation.

To Clean Up Space Junk, Some People Grabbed a Net and Harpoon

To Clean Up Space Junk, Some People Grabbed a Net and Harpoon

Astroscale's first mission, called ELSA-d a cheery acronym that hides the ominous "End-of-Life Service" hidden within it, aims to show that a reaper-style space robot can find lost debris, match a dead satellite’s tumble, and dock.PushersTraditionally, satellites have thrusters that push them to the orbits they need, keep them there, and then (assuming the gas gauge doesn't read "empty") send them shooting down to Earth when the time comes.

The SpaceX 'Clown Car' Launch Actually Worked—Here's How

The SpaceX 'Clown Car' Launch Actually Worked—Here's How

“I am still very concerned.” He later cited another launch of 31 objects, of which only 18 had been identified three and a half days in.“We put our plan in front of all the regulators and in front of the Combined Space Operations Center,” Blake says, referring to the relevant part of the Air Force.

Watch SpaceX Attempt Its Wickedly Complex Satellite Launch

Watch SpaceX Attempt Its Wickedly Complex Satellite Launch

The California-based aerospace company is flexing its ridesharing muscles in a carefully choreographed orbital ballet as its flagship rocket—the Falcon 9—prepares to launch 64 small satellites into orbit.The mission, dubbed SSO-A, is slated to lift off a little after 10:30 am PT from the company’s west coast launch site, the second flight within a few weeks for SpaceX.

SpaceX's Next Launch Will Spark a Space Internet Showdown

SpaceX's Next Launch Will Spark a Space Internet Showdown

“For 90 percent of the planet’s surface, you need satellites,” says Fabien Jordan, founder and CEO of Astrocast, one of the startups sending a satellite up next week.If shippers want to track assets at sea, farmers wish to check on the health of their crops, or governments seek to monitor dangerous bridges today, they must deploy powerful devices connecting to traditional satellite communications providers like Iridium, Globalstar and Inmarsat.

New Satellite's Lasers Will Track Tiny Changes in Polar Ice

New Satellite's Lasers Will Track Tiny Changes in Polar Ice

Once it settles into orbit 310 miles above the Earth, the satellite will start collecting data using a specially designed laser device that will give scientists more data about exactly where ice is melting and how fast.The NASA satellite will scan the Earth’s surface using six green laser beams to measure glaciers and floating sea ice.

New Space Robots Will Fix Satellites, or Maybe Destroy Them

New Space Robots Will Fix Satellites, or Maybe Destroy Them

Because the technology now exists to build these satellite hackers, we're stuck in a quandary: If your enemy can launch such orbiters, and you don't match them, you run the risk of having your space infrastructure quietly slaughtered.NASA's peaceful program for satellites with these servicing capabilities is called Restore-L.

The 19th Century Argument for a 21st Century Space Force

The 19th Century Argument for a 21st Century Space Force

Security experts warn that Russia and China are both catching up and developing anti-satellite weapons capable of tripping up America’s strategic orbital foothold.The fourth thing to know about space power is, if America gives up its military dominance, expect its economic influence to wane as well.

Climate change warning: Sea levels rising even FASTER as ice caps melt

Climate change warning: Sea levels rising even FASTER as ice caps melt

GETTYA two metre jump could see a host of major cities be partially submergedCo-author John Fasullo, a climate scientist at the National Center for Atmospheric Research, said: "This study highlights the important role that can be played by satellite records in validating climate model projections.”If the calculations are correct, it would mean that sea levels could rise by almost one metre by 2100, which would be devastating for island countries around the globe.

The Arctic's Most Stable, Solid Patch of Ice Is Melting

The Arctic's Most Stable, Solid Patch of Ice Is Melting

A NASA satellite image shows where the ice has pulled away from Greenland's north coast, a phenomenon that's never been recorded before.

Seeing hidden worlds under melting ice – Climate Change: Vital Signs of the Planet

Seeing hidden worlds under melting ice – Climate Change: Vital Signs of the Planet

OMG is a multi-pronged effort to map the underwater contours of the Greenland coast, and better understand how warming ocean waters drive melting ice. A giant leap forward came late in 2017, when NASA, the University of California, Irvine and others published high resolution maps of the bedrock and sea floor around Greenland.

Counting on NASA's ICESat-2 – Climate Change: Vital Signs of the Planet

Counting on NASA's ICESat-2 – Climate Change: Vital Signs of the Planet

Hundreds of people at NASA's Goddard Space Flight Center in Greenbelt, Maryland, worked to build this smart-car-sized instrument to exacting requirements so that scientists can measure minute changes in our planet’s ice.

How Engineering the Climate Could Mess With Our Food

How Engineering the Climate Could Mess With Our Food

Bad news is, the solar shading that would come with geoengineering would negatively affect crops, likely wiping out the gains from lower temperatures.“If we imagine geoengineering as an experimental surgery, our findings suggest that the damages or side effects from the surgery are just as bad as the original disease,” says UC Berkeley agricultural economist Jonathan Proctor, lead author of the new study.A funny thing happens to light when it hits a volcano’s sulfate aerosols in the air.