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Space News
TechCrunch
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Image Credit: TechCrunch
SpinLaunch raises $11M but hoped to raise much more, source says
- Space startup SpinLaunch has raised $11.5 million out of a planned $25 million in its latest funding round.
- SpinLaunch was exploring raising a much larger sum of $350 million at a $2 billion valuation earlier this year.
- The company aims to build a kinetic launch system as a low-cost alternative to rockets.
- SpinLaunch has conducted suborbital tests and was considering competing with Starlink by operating a satellite constellation for broadband service.
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Popsci
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Image Credit: Popsci
Drones can avoid GPS jammers by navigating with the stars
- Researchers at the University of South Australia have developed a low-cost prototype system that allows drones to navigate using celestial triangulation and vision-based algorithmic computing.
- The system does not emit any signals, making it resistant to GPS jamming attacks.
- The prototype consists of a Raspberry Pi 5 computer and a monochrome sensor with a wide-angle lens, connected to a drone's autonomous piloting system.
- Although not as precise as GPS, the system provides a backup for navigation in case of GPS failure and could be useful in combat, surveillance, and remote environmental monitoring missions.
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Universe Today
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Image Credit: Universe Today
White Dwarfs Could Have Habitable Planets, Detectable by JWST
- White dwarfs, the remnants of midsize stars, could potentially have habitable planets that can support life.
- More than a dozen planets have been found orbiting white dwarf stars, indicating that planets can survive the red giant stage of a Sun-like star.
- White dwarfs have a habitable zone that can persist for billions of years, providing enough time for life to evolve and thrive on a planet.
- The James Webb Space Telescope (JWST) has the capability to detect biosignatures and potentially find evidence of life on white dwarf planets.
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Universe Today
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Image Credit: Universe Today
Catch Jupiter at Opposition 2024 This Coming Weekend
- Jupiter shines at its best in early December, rising in the east at sunset.
- Opposition for Jupiter in 2024 occurs on December 7th.
- Zooming in on Jupiter through a telescope allows viewers to see its four major moons and the Great Red Spot.
- Jupiter is so bright that it can cast a slight shadow.
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Discover more
Medium
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Image Credit: Medium
JAPAN WANTS TO BUILD A SPACE ELEVATOR :
- Japan plans to build a space elevator using super-strong carbon nanotubes.
- The elevator would stretch from Earth to an altitude of 60,000 miles and have a 30-passenger car for travel.
- The main challenge is creating long enough carbon nanotubes for the project.
- If successful, the space elevator could revolutionize space tourism.
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Earthsky
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Image Credit: Earthsky
Small asteroid to hit Earth’s atmosphere over Siberia today
- A small asteroid, named C0WEPC5, is set to hit Earth's atmosphere over Siberia today.
- The asteroid, approximately 0.5 to 1.2 meters in size, will enter Earth's atmosphere around 16:14 UTC.
- The impact is expected to create a fireball but will not cause any damage.
- This is the 11th time ever and the 4th time this year that astronomers have spotted an asteroid just before it crashed into Earth's atmosphere.
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Livescience
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Image Credit: Livescience
Massive, 'potentially hazardous' asteroid due to make closest-ever approach to Earth tonight — and you can watch it live
- A 'potentially hazardous' asteroid the size of a football stadium will make its closest-ever approach to Earth on December 4.
- The asteroid, named 2020 XR, will reach a minimum distance of 1.37 million miles from Earth.
- The flyby can be watched via a free livestream from the Virtual Telescope Project.
- The asteroid is not expected to pose any threat to our planet during this encounter, but it is classified as a near Earth object.
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Earthsky
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Image Credit: Earthsky
Proba-3: A sun-observing telescope made from 2 satellites
- On December 4, 2024, ESA is set to launch an audacious two-part telescope into space to study the sun’s atmosphere.
- The occulter isn’t attached to the telescope … but will instead be on a separate satellite, 492 feet (150 meters) away.
- The two spacecraft will form the largest coronagraph ever made.
- Proba-3’s mission is to study the inner corona, which is normally visible only during a total solar eclipse.
- The spacecraft won’t always be aligned, because this would require too much fuel. Instead, they’ll use their thrusters to maneuver into position.
- During apogee, the satellites will linup 492 feet apart, so that the outer spacecraft’s 4.6 feet occulting disk creates an artificial solar eclipse for the inner satellite.
- Proba-3 will be in an extremely elliptical orbit of Earth.
- Proba-3 can image the corona up to every 30 seconds.
- Scientists hope this detailed view of the inner corona will provide insight into the development of coronal mass ejections (CMEs).
- One of the main reasons ESA came up with the idea of two-part coronagraph is to avoid diffraction.
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Sciencenewsforstudents
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Image Credit: Sciencenewsforstudents
Let’s learn about supernovas
- Nearly 1,000 years ago, astronomers in China and Japan observed a supernova, which was initially mistaken as a new star.
- Supernovas are colossal explosions that can outshine galaxies and occur in two ways: when a white dwarf star gains too much mass and when a massive star runs out of fuel.
- The remnants of a supernova explosion from 1054 A.D. make up the Crab Nebula, including a pulsar at the center.
- Supernovas are significant for the enrichment of space with elements essential for the formation of new stars, planets, and life forms.
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Knowridge
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Image Credit: Knowridge
Venus: Earth’s “evil twin” may never have been habitable
- Astronomers at the University of Cambridge have discovered that Venus, Earth's closest neighbor, may never have had liquid water or been habitable.
- Previous theories suggesting that Venus became uninhabitable due to a runaway greenhouse effect are challenged by this study.
- The research indicates that Venus's interior is too dry to have ever supported oceans or life similar to Earth's.
- The findings have implications for the search for life beyond our solar system, as many exoplanets resemble Venus more than Earth.
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Medium
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Image Credit: Medium
Star Wars: Skeleton Crew — A Promising Start in a Galaxy Far, Far Away
- Skeleton Crew shows a bright future within the Star Wars franchise with a blend of nostalgia, youthful adventure and potential for deeper storytelling.
- As the series unfolds, it promises to entertain and engage audiences while exploring new themes and character dynamics.
- The initial critical feedback suggests that Skeleton Crew is off to a flying start and has strong potential to maintain its momentum.
- Critics have lauded the young cast's performances and the series' homage to 80s Amblin blockbusters, which appeals to new audiences and older fans.
- However, some critics have pointed out weaknesses in Skeleton Crew's storytelling, suggesting that it may take time for the series to find its footing.
- In terms of comparison, Skeleton Crew faces a competitive landscape in the live-action Star Wars shows genre, with Andor leading the charts and The Mandalorian setting a high benchmark.
- The bar is set high for new entries, and the series must focus on delivering compelling storytelling to capture and retain its audience's interest.
- Jon Watts can bring a fresh perspective to Skeleton Crew and replicate the success he had in crafting engaging stories within the Marvel Cinematic Universe.
- As more reviews are expected in the coming weeks, the Skeleton Crew score may fluctuate, and initial reactions can be indicative of the series' overall trajectory.
- With the unique experience of blending character-driven stories with action and humor, Skeleton Crew holds immense promise to carve out its own identity within the extensive Star Wars narrative.
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Tech Story
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SpaceX Eyes $350 Billion Valuation with Potential Tender Offer: A New Milestone in Space Exploration
- SpaceX is considering a potential tender offer that could raise its valuation to $350 billion.
- This move reflects SpaceX's growing dominance in the space industry and its ambitious projects.
- The tender offer would solidify SpaceX as one of the most valuable privately held companies.
- Factors driving the valuation surge include the success of the Starship program, expansion of the Starlink satellite internet network, and increased commercial launches.
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Digitaltrends
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Image Credit: Digitaltrends
NASA’s skywatching tips for December include a meteor shower
- Venus, Saturn, Jupiter, and Mars are visible in the night sky in December.
- Orion, Taurus, and Gemini constellations can be observed with their notable sights.
- The Geminid meteor shower peaks on December 14, but the brightness of the moon may hinder visibility.
- Overall, December offers various celestial delights for skywatchers.
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Knowridge
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Image Credit: Knowridge
Astronomers pinpoint the origin of mysterious repeating radio bursts from space
- Astronomers have traced repeating radio bursts from space back to a red dwarf star and a white dwarf in a binary orbit.
- These bursts were discovered in 2022 and have puzzled astronomers due to their slow repetition and their origin was unknown.
- The discovery of a new source called GLEAM-X J0704-37, emitting minute-long pulses every 2.9 hours, helped in solving the mystery.
- Observations from the MeerKAT telescope located the source as a red dwarf star, indicating a white dwarf in a binary orbit as the unseen radio emitter.
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Mensjournal
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These Limited-Edition Citizen Watches Are Deep Space Delights
- Citizen has launched the Hakuto-R series, a limited-edition collection of watches crafted in collaboration with ispace.
- The watches are part of ispace's lunar exploration program, aiming to extend human life into space.
- The collection includes three watches made of Super Titanium, with unique crystal patterns and city initials on the bezel.
- The prices range from $1,475 to $2,195, with limited quantities available worldwide.
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