What do you do if you discover a big rock on a collision course with Earth and have very little time to take action?
Large telecommunication satellites used for TV broadcasting could be quickly and easily repurposed as anti-asteroid weapons according to European aerospace company Airbus.
Featured Image Source: netvault.net.au.
SpaceX founder Elon Musk recently shared that the company is already providing Starlink Beta broadband internet service to over 69420 users globally out of over half-a-million customers who pre-ordered the internet service via Starlink.com. According to SpaceX President Gwynne Shotwell, the Starlink constellation is currently actively beaming its signal to users in 11 countries (now 12), including portions of the United States, Canada, United Kingdom, Germany, Belgium, France, Austria, Netherlands, Australia, and New Zealand. More European countries and regions in the United States will have coverage during the second half of 2021 and early 2022.
This week, SpaceX e-mailed potential customers in the European country of Denmark –“Starlink is now available in limited supply in Denmark!” the e-mail reads. “Users can expect to see data speeds vary from 50Mb/s to 150Mb/s [megabits per second] over the next several months as we enhance the Starlink system. There will also be brief periods of no connectivity at all,” SpaceX wrote in the e-mail. “As we launch more satellites, install more ground stations and improve our networking software, data speed, latency and uptime will improve dramatically.” To date, SpaceX has launched approximately 1740 internet-beaming Starlink satellites out of over 12000 that will be part of the global broadband constellation.
Virgin Orbit launched seven satellites today (June 30), taking a big step toward regular and reliable commercial launch service.
The first five payloads from the Space Development Agency, an organization charged with rapidly infusing emerging technologies into the U.S. military’s space programs, are among more than 80 satellites awaiting launch from Cape Canaveral Tuesday on a SpaceX Falcon 9 rocket.
Established in 2019, the Space Development Agency plans to deploy hundreds of small satellites to enable improved communications for the U.S. military. SDA’s strategy leans on the rapid development of new commercial space technology, including new types of sensors and cheaper, easier-to-produce small satellites that can be deployed in large constellations in low Earth orbit.
SDA plans to launch the first tranche of 28 satellites to provide initial infrared missile detection and low-latency data relay services in late 2022 and early 2023. Twenty of those satellites, part of the “transport layer,” will be developed by Lockheed Martin and York Space Systems for communications support. The other eight “tracking” satellites will be supplied by SpaceX and L3Harris for missile detection and tracking.
An international group of astronomers has created images with never-before-seen detail of a galaxy cluster with a black hole at its center, traveling at high speed along an intergalactic “road of matter.” The findings also support existing theories of the origins and evolution of the universe.
The concept that roads of thin gas connect clusters of galaxies across the universe has been difficult to prove until recently, because the matter in these ‘roads’ is so sparse it eluded the gaze of even the most sensitive instruments. Following the 2020 discovery of an intergalactic thread of gas at least 50 million light-years long, scientists have now developed images with an unprecedented level of detail of the Northern Clump—a cluster of galaxies found on this thread.
By combining imagery from various sources including CSIRO’s ASKAP radio telescope, SRG/eROSITA, XMM-Newton and Chandra satellites, and DECam optical data, the scientists could make out a large galaxy at the center of the clump, with a black hole at its center.
Satellite imagery is becoming ubiquitous. Research has demonstrated that artificial intelligence applied to satellite imagery holds promise for automated detection of war-related building destruction. While these results are promising, monitoring in real-world applications requires high precision, especially when destruction is sparse and detecting destroyed buildings is equivalent to looking for a needle in a haystack. We demonstrate that exploiting the persistent nature of building destruction can substantially improve the training of automated destruction monitoring. We also propose an additional machine-learning stage that leverages images of surrounding areas and multiple successive images of the same area, which further improves detection significantly. This will allow real-world applications, and we illustrate this in the context of the Syrian civil war.
Existing data on building destruction in conflict zones rely on eyewitness reports or manual detection, which makes it generally scarce, incomplete, and potentially biased. This lack of reliable data imposes severe limitations for media reporting, humanitarian relief efforts, human-rights monitoring, reconstruction initiatives, and academic studies of violent conflict. This article introduces an automated method of measuring destruction in high-resolution satellite images using deep-learning techniques combined with label augmentation and spatial and temporal smoothing, which exploit the underlying spatial and temporal structure of destruction. As a proof of concept, we apply this method to the Syrian civil war and reconstruct the evolution of damage in major cities across the country. Our approach allows generating destruction data with unprecedented scope, resolution, and frequency—and makes use of the ever-higher frequency at which satellite imagery becomes available.
U.K. start-up Arqit expects to launch a worldwide service for sharing unbreakable quantum-encrypted messages using satellites in 2023.
The U.S. Space Development Agency has five satellites riding on SpaceX’s Transporter-2 mission scheduled to launch June 25.
WASHINGTON — The U.S. Space Development Agency has five satellites riding on SpaceX’s Transporter-2 rideshare mission scheduled to launch June 25.
“There’s nothing in the space business that gets your blood pumping like the idea of a launch, especially if you’ve got multiple satellites,” a senior Space Development Agency (SDA) official told reporters June 22. “We’re really excited about what’s going to happen.”
Continue reading “Space Development Agency to launch five satellites aboard SpaceX rideshare” »
Fast transport of equipment and personnel using rockets similar to that of SpaceX.
Travelling through space will be far faster than atmospheric flight.
Continue reading “The Pentagon Just COPIED SpaceX and Elon Musk” »
Russia is planning to send a nuclear-powered spacecraft to the grand gas giant of the Solar System, Jupiter, in 2030.
Roscosmos, Russia’s federal space agency, announced the plan for the mammoth 50-month journey last week. The journey will take it on a mini tour of the Solar System, taking pit stops around the Moon and Venus, dropping off spacecraft along its way, before heading on to Jupiter.
More specifically, a “space tug” with a nuclear-based transport and energy module dubbed Zeus will head towards the Moon where a spacecraft will separate from it. It will then pass by Venus to perform a gravity assist maneuver and drop off another spacecraft, before venturing towards Jupiter and one of its satellites.
