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Archive for the ‘satellites’ category: Page 47

Aug 6, 2022

SpaceX raises another $250 million in equity, lifts total to $2 billion in 2022

Posted by in categories: Elon Musk, internet, satellites

Elon Musk’s SpaceX raised $250 million in an equity round last month, the company disclosed in a securities filing on Friday. It has now raised $2 billion in 2022.

The filing doesn’t specify the sources of the funds, but noted they came from five investors.

SpaceX did not disclose a change in its valuation. The company’s value has soared in the last few years, with SpaceX raising billions to fund work on two capital-intensive projects — the next generation rocket Starship and its global satellite internet network Starlink. Its value hit $127 billion during its previous equity round in May, CNBC reported. That raise brought in $1.725 billion.

Aug 6, 2022

Can We Throw Satellites to Space? — SpinLaunch

Posted by in categories: engineering, media & arts, satellites

A new deep dive into this fascinating, possibly game changing tool to RAPIDLY build space infrastructure that would otherwise take far longer and cost more to lift into orbit with rockets.


Take the Real Engineering X Brilliant Course and get 20% off your an annual subscription: https://brilliant.org/realengineering.

Continue reading “Can We Throw Satellites to Space? — SpinLaunch” »

Aug 3, 2022

The Universe: Space Weapons Prepare for War (S4, E8) | Full Episode | History

Posted by in categories: cosmology, military, satellites

Outer space is already an essential part of America’s ability to fight wars. Our military depends on satellites for many things, such as communications, reconnaissance and targeting information. See more in Season 4, Episode 8, “Space Wars.”

#TheUniverse.

Continue reading “The Universe: Space Weapons Prepare for War (S4, E8) | Full Episode | History” »

Aug 1, 2022

Space Force plans launch this week for final SBIRS missile warning sat

Posted by in category: satellites

“This launch represents the conclusion of the production and launch phase, and the commencement of the satellites’ critical missile detection and early warning mission,” Maj. Matt Blystone, program manager at the Space Force’s Space Systems Command (SSC), told reporters today at a pre-launch briefing.

SBIRS, conceived in 1996, was designed to replace the elderly Defense Support Program (DSP) satellites, the first of which was launched in 1970. The operational constellation comprises three satellites in Geosynchronous Orbit (GEO) and two hosted payloads on classified satellites in Highly Elliptical Orbits over the poles. Lockheed Martin is the SBIRS prime contractor and Northrop Grumman the payload integrator.

Assuming the Thursday launch goes as planned, the last of the satellites, SBIRS GEO-6, is expected to be up and running by “late spring, early summer” next year, Blystone said. The time between now and then will be filled with various tests of the satellite and its subsystems.

Aug 1, 2022

Rocket Lab will help the U.S. Space Force build missile warning satellites

Posted by in categories: military, satellites

Aug 1, 2022

MIT researchers develop low-cost, 3D-printed plasma sensors for satellites

Posted by in categories: climatology, satellites, sustainability

Cheap and quick to produce, the plasma sensors could help scientists predict the weather or study climate change.

Jul 31, 2022

Space junk, 1962–2022 🛰️

Posted by in categories: satellites, surveillance

🗑️ Space junk (space debris, space pollution, space waste, or space garbage) is defunct man-made objects in space (mainly in Earth orbit) that no longer serve a useful function.

👀 And here is how its number has changed over the past 60 years.

*As of January 2021, the US Space Surveillance Network reported 21,901 artificial objects in orbit above the Earth, including 4,450 operational satellites. However, these are just objects large enough to be tracked.

Continue reading “Space junk, 1962-2022 🛰️” »

Jul 31, 2022

SpaceX shares how it’s making Starlink satellite less bright

Posted by in categories: internet, satellites

SpaceX shared how it’s making its Starlink satellites less bright. The space exploration company published a document titled, Brightness Mitigation Best Practices for Satellite Operators that outlines how it’s working with the astronomy community to reduce light pollution.

New document from @SpaceX https://api.starlink.com/public-files/BrightnessMitigationBe…rators.pdf explaining what they have been doing to make their satellites less bright. I applaud SpaceX for their work on this (and for making the document public), while remaining concerned to see how bright the Gen2 Starlinks end up being.

— Jonathan McDowell (@planet4589) July 29, 2022

Jul 29, 2022

Satellites can disappear in major solar storms and it could take weeks to find them

Posted by in category: satellites

The risk of satellite collisions would be extremely high after a major solar storm, experts say.

Jul 29, 2022

Scientists calculate the risk of someone being killed by space junk

Posted by in categories: particle physics, satellites

The chance of someone being killed by space junk falling from the sky may seem ridiculously tiny. After all, nobody has yet died from such an accident, though there have been instances of injury and damage to property. But given that we are launching an increasing number of satellites, rockets, and probes into space, do we need to start taking the risk more seriously?

A new study, published in Nature Astronomy, has estimated the chance of causalities from falling rocket parts over the next ten years.

Every minute of every day, debris rains down on us from space – a hazard we are almost completely unaware of. The microscopic particles from asteroids and comets patter down through the atmosphere to settle unnoticed on the Earth’s surface – adding up to around 40,000 tonnes of dust each year.

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