Lifeboat Foundation

High-tech missiles, sensors, aircraft, ships, and artillery all rely on atomic clocks on GPS satellites for nanosecond timing accuracy. A timing error of just a few billionths of a second can translate to positioning being off by a meter or more. If GPS were jammed by an adversary, time synchronization would rapidly deteriorate and threaten military operations.

To address this scenario, DARPA has announced the Robust Optical Clock Network (ROCkN) program, which aims to create optical atomic clocks with low size, weight, and power (SWaP) that yield timing accuracy and holdover better than GPS atomic clocks and can be used outside a laboratory. ROCkN will leverage DARPA-funded research over the past couple decades that has led to lab demonstration of the world’s most precise optical atomic clocks. ROCkN clocks will not be as precise as the best lab optical clocks, but they will surpass current state-of-the-art atomic clocks in both precision and holdover while maintaining low SWaP in a robust package. https://www.darpa.mil/news-events/2022-01-20

What if plants could tell us when pests are attacking them, or they’re too dry, or they need more fertilizer. One startup is gene engineering farm plants so they can communicate in in fluorescent colors. The result: a farmer’s phone, drone, or even satellite imagery can reveal what is happening in hundreds of acres of fields …

That leads to better food, fewer crop failures, and more revenue for farmers.

Continue reading “Engineering plants to talk via bioluminescence” »

ORLANDO, Fla., Jan. 6 (UPI) — SpaceX kicked off a surge in launch activity Thursday with the successful launch of 49 of the company’s Starlink communications satellites from Florida, heading south along the state’s coastline.

Five SpaceX missions may launch in the next month on the southern polar trajectory, flying closer to the Florida coast toward Miami than most launches, according to the U.S. Space Force.

Continue reading “SpaceX successfully completes first launch of 2022 from Florida” »

What do you call a broken satellite?

Today, it’s a multimillion-dollar piece of dangerous space junk.

But a new collision-avoidance system developed by students at the University of Cincinnati is getting engineers closer to developing robots that can fix broken satellites or spacecraft in orbit.

Archaeologists have discovered a 4,500-year-old highway network in Saudi Arabia lined with well-preserved ancient tombs.

Researchers from the University of Western Australia have carried out a wide-ranging investigation over the past year, involving aerial surveys conducted by helicopter, ground survey and excavation and examination of satellite imagery.

In findings published in the Holocene journal in December, they said the “funerary avenues” spanning large distances in the northwestern Arabian counties of Al-‘Ula and Khaybar had received little examination until quite recently.

Space Exploration Technologies Corporation’s (SpaceX) ch8ef executive officer Mr. Elon Musk has shared the latest details for his company’s Starlink satellite internet constellation. Starlink is SpaceX’s internet service which uses low Earth orbit (LEO) small satellites to beam down the Internet to its users. Due to a rapid cadence of launches, SpaceX has ensured that Starlink is the world’s largest internet constellation in service, and the company is currently upgrading the satellites with laser based connectivity. This will allow Starlink to expand its coverage and reach areas that cannot be served without ground stations to connect the satellites and the users to internet servers.

Starlink Will Soon Start To Operate Laser Links Between Satellites Confirms Musk

Mr. Musk shared the latest details through his social media platform Twitter, as he outlined the number of Starlink satellites currently in orbit and his company’s plans to activate newer spacecraft capable of optical communication. These are crucial for evaluating the internet service’s current capacity, which has come under fire from rivals in proceedings for spectrum sharing and licensing currently underway at the Federal Communications Commission (FCC).

An international team of astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) has detected a rocky planet, about half the mass of Earth, in an extraordinarily short 7.7-hour orbit around its parent star.

It’s a reminder that the science of extrasolar planet hunting seems to enter bizarro land with each new discovery. Planetary scientists still haven’t figured out how our own tiny Mercury — which orbits our Sun once every 88 days — actually formed and evolved. So, this iron-rich ultrashort-period (USP) planet, dubbed GJ 367b should really boggle their minds.

It’s completely rocky, unlike most previously detected gaseous hot Jupiters on extremely short stellar orbits. As a result, the tiny planet is estimated to have a surface with temperatures of 1,500 degrees Celsius, hot enough to melt iron; hardly an Earth 2.0.

Continue reading “New sub-Jupiter-mass exoplanet detected by astronomers” »

It’s rare that faster can also equate to greener in the aerospace industry, but that’s the goal of Australian startup Hypersonix has in sight.

The company has developed a new hypersonic satellite launch system that will make launches more accessible and also more sustainable. The technology could one day also help develop hypersonic airliners capable of crossing the Atlantic in a little over an hour.

“At Mach 5 and above, friction caused by molecules flowing over the hypersonic aircraft can generate temperatures in excess of 2,000˚C (3,632˚F),” the company says in a press statement. “Suffice to say that Brisbane-based aerospace engineering start-up, Hypersonix Launch Systems, is choosing its materials to cope with these extremes.”

Elon Musk—via Starlink, a division of SpaceX—is in talks with “several” airlines to provide in-flight WiFi for passengers. His plan is to use Starlink’s ever-growing megaconstellation of satellites to equip customers with better WiFi while they fly the friendly skies.

Jonathan Hofeller, SpaceX’s vice president of Starlink and commercial sales, gave out details on the ambitious plan during a panel at the Connected Aviation Intelligence Summit on Wednesday.