Tag: space

JAMES WEBB SPACE TELESCOPE DETECTS ANOMALOUS EMISSIONS COMING FROM MYSTERIOUS ISOLATED SPACE OBJECT

The James Webb Space Telescope has detected a massive object larger than Jupiter that appears to be producing infrared emission from methane, in an unexpected discovery by astronomers that could represent evidence of atmospheric heating resulting from auroral processes.

The discovery has baffled astronomers because the object, an isolated brown dwarf called W1935, is cold and lacks any host star to provide its upper atmosphere with the energy that usually drives such methane emissions. According to new research, it is believed the source of the object’s mysterious emissions could arise from processes generating its aurora.

Methane emission is commonly associated with gas giants like Jupiter. Heating that occurs in the planet’s upper atmosphere is the driving force behind this, and astronomers believe it is also linked to the vivid aurora that Jupiter and other gas giants often display.

The closest observations of aurorae occur when they are visible here on our own planet, as energetic particles emanating from the Sun collide with Earth’s magnetic field. Hence, the mystery of W1935, which, unlike planets in our solar system, receives no stellar wind to power its apparent methane emissions.

The discovery raises questions about what process could account for the brown dwarf’s eerie glow, which could result from the presence of interstellar plasmas or some underlying internal process, or even the presence of an active moon nearby, similar to how moons orbiting Jupiter and Saturn can also influence their auroral activity.

The discovery of W1935’s odd emissions occurred as part of a research effort led by astronomer Jackie Faherty with the American Museum of Natural History in New York. However, the brown dwarf’s discovery was made beforehand by Dan Caselden, a citizen scientist responsible for the discovery of other similar objects, with help from NASA’s Wide Field Infrared Survey Explorer.

Viewed through the James Webb Space Telescope’s powerful eye, W1935 appeared almost identical to another of Caselden’s discoveries, a brown dwarf with the designation W2220, except for W1935’s curious methane emissions, which were quickly evident in the infrared wavelengths observed by Webb.

Faherty said the observation initially confused her team.

“My first thought was, what the heck? Why is methane emission coming out of this object?” Faherty said in a statement.

Based on computer models, W1935 differed significantly from W2220 in that its atmosphere appeared to grow warmer in proportion to altitude, an apparent temperature inversion.

Ben Burningham, who led the models used in the research and a co-author of the team’s recent study, said this phenomenon has been observed before, but not on planets as isolated as W1935, which receive no heat from a nearby star.

Keep reading

US Military Launches Highly Classified Unmanned Space Plane

The US Space Force launched a secretive plane on Thursday which has been equipped with heavier boosters that could feasibly send it further into orbit than ever before.

The launch marks the 9th flight of the three-core SpaceX Falcon Heavy booster, and the 7th flight of the US Air Force’s (not so) secret unmanned spaceplane, the X-37B (USSF-52).

The launch was previously scheduled for Dec. 10, however it was scrapped due to issues with ground equipment just 30 minutes before liftoff – pushing the event back 18 days.

Officially, the X-37B will enter into various orbits around Earth and serve as a testing ground for NASA’s study of the effects of long-duration exposure to space on organic materials, the Epoch Times reports, adding that the mission will also include experiments having to do with “space domain awareness,” which the US Space Force defines as the ability to “rapidly detect, warn, characterize, attribute, and predict threats to national, allied, and commercial space systems.”

Keep reading

THIS STARTUP IS DEVELOPING A FUSION PROPULSION DRIVE FOR DEEP SPACE TRAVEL THAT COULD REACH MARS IN JUST TWO MONTHS

Helicity Space, a startup founded in 2018, is developing a fusion drive poised to transform space travel. With a fresh round of investment, the company is developing a proof-of-concept for a fusion-powered propulsion system that can get from Earth to Mars in two months.

In a recent press release, the space-based startup recently secured $5 million in seed funding from Airbus Ventures, TRE Ventures, Voyager Space Holdings, E2MC Space, Urania Ventures, and Gaingels. 

Unlike traditional rockets that rely on chemical reactions, Helicity’s fusion drive operates on a magneto-inertial fusion method. This involves fusing two hydrogen isotopes into helium, releasing immense energy – ten million times more per unit mass than chemical fuels​​.

According to Helicity, the core technology behind their fusion drive efficiently converts electricity into plasma heating, using a unique approach to scale fusion conditions and directly produce thrust​​. Their method, distinct from conventional magnetic or inertial (laser) fusion, employs self-organized Taylor relaxation and magnetic reconnection physics, combined with a peristaltic magnetic compression scheme.

In very simple terms, the engine uses hot ionized plasma gas heated by magnetic fields that are constantly forced together to the point where they must then break apart. It is this seesaw of magnetic forces that generates vast amounts of energy, heating the plasma to the point where fusion occurs, forcing the nuclei so close that they overcome their electrostatic repulsion and fuse together. To simplify this even more, the energy created by that fusion is aimed out of the tailpipe of the Helicity Drive, and you generate a helluva lot of thrust.

So much so that it cuts the current seven or eight-month trip to Mars down to two, or the six-year trip to Jupiter down to just one.

Keep reading

China’s Spaceplane Has Released Multiple Mystery Objects In Orbit

China’s shadowy miniature spaceplane appears to have deployed at least six objects into orbit while conducting its latest mission, its third. The reusable space vehicle, which is understood to be broadly comparable to the U.S. Space Force’s X-37B, clearly has military applications, although the exact nature of its payloads remains mysterious.

The Chinese spaceplane, named Shenlong (meaning Divine Dragon), has placed the objects in Earth orbit since it was launched from the Jiuquan Satellite Launch Center on December 14. The existence of these objects has been confirmed by amateur spacecraft trackers.

The spaceplane itself is launched atop a traditional space launch rocket and is propelled into orbit using a secondary booster. It returns to Earth in an unpowered mode, much like the X-37B.

One amateur astronomer, Scott Tilley, told Space.com’s Brett Tingley that some of the objects — which have been named A, B, C, D, E, and F — seem to be transmitting signals. Tilley has described these objects as “mysterious wingmen,” a nod to the “loyal wingman” terminology used for the drones that operate collaboratively with piloted aircraft. The Shenlong, of course, is uncrewed.

Tilley also provided Space.com with details on the differences in transmissions between the objects, with Object A said to be sending small amounts of data, while Objects D and E seem to be only emitting “placeholder” signals, without accompanying data.

Keep reading

These scientists want to put a massive ‘sunshade’ in orbit to help fight climate change

A group has been formed to study and promote a space-based sunshade to help fend off global climate change. 

The idea has been discussed for years, but the Planetary Sunshade Foundation is cranking out papers that support the concept and spotlight the practicality of the approach. 

A planetary sunshade, the Foundation advises, could be the best solution for solar radiation management and should be viewed as a key part of global efforts to counter ongoing climate change on Earth.

Keep reading

DREAM CHASER SPACEPLANE IS GEARING UP TO HELP NASA DELIVER CARGO TO THE INTERNATIONAL SPACE STATION

An innovative new spaceplane cargo system is advancing toward its first delivery to the International Space Station (ISS), as one of NASA’s commercial partners providing resupply services.

The Dream Chaser spaceplane, designed by Colorado-based Sierra Space, is an uncrewed cargo spacecraft that is expected to carry out its first demonstration mission next year, NASA said in a news release.

Currently the only commercial runway-capable spaceplane, the reusable cargo system comprises two components, the Dream Chaser, a lifting body spacecraft, and its cargo module, Shooting Star. The system, a modified HL-20 spacecraft, is designed for reuse as many as 15 times and can be prepared for launch in as little as 24 hours.

Dream Chaser’s first flight will undertake in-orbit demonstrations next year to help Sierra Space and its partners at NASA gauge its readiness for future resupply missions. Flight controllers with Sierra Space will oversee the launch, with assistance and support from NASA personnel and the agency’s launch facilities.

At the time of launch, Dream Chaser’s wings are folded within five-meter fairing panels that are jettisoned once they reach orbit, which protect the spacecraft while being carried to orbit on board a United Launch Alliance (ULA) Vulcan Centaur rocket.

On its way to the ISS, Dream Chaser’s wings are deployed, as well as solar arrays on its cargo module, Shooting Star, which can deliver pressurized and unpressurized cargo to the ISS, as well as retrieve it and bring it back to Earth. The cargo module is disposable, and after each use, it can be jettisoned before reentry.

Before entering joint operations with NASA Mission Control in Houston, Dream Chaser will first demonstrate attitude control, abort capabilities, and other crucial maneuvers well beyond the vicinity of the ISS during initial test phases. These will be followed by near-field demonstrations, which will feature sensor systems and response commands that test its ability to maneuver within proximity to the space station before ultimately being cleared to approach it.

Keep reading

Amazon Fires Up Its Space Lasers 

A shoot-out featuring thousands of lasers is about to break out in low earth orbit. Luckily, no one will get hurt—the lasers’ targets are the protagonists’ own communications satellites.

Amazon has just announced that two of its prototype internet satellites equipped with infrared lasers transferred data at 100 gigabits per second over a distance of nearly 1000 kilometers. The company says all of its upcoming 3236 Project Kuiper satellites will include such interlinks, forming a high-speed mesh network to route data around the world.

SpaceX’s rival Starlink system, which already boasts over 1.5 million customers including the Ukrainian military, has been experimenting with optical interlinks for about a year. It recently claimed to have more than 8,000 space lasers on its newest generation of satellites, which began launching earlier this year.

Now the race is on to build the first complete optical inter-satellite link (OISL) constellation, at a price that’s competitive with terrestrial 5G and fiber networks.

Keep reading

China launches secret space plane on 3rd-ever mission

China has launched its reusable space plane for the third time.

A Long March 2F rocket lofted China’s experimental spacecraft from the Jiuquan Satellite Launch Center on Thursday (Dec. 14) to conduct space science experiments and “provide technical support for the peaceful use of space,” according to Xinhua news.

The launch comes just seven months after the spacecraft’s last mission, a much quicker follow-up compared to the first and second launches which happened 23 months apart, SpaceNews reports. 

Hours prior to the secretive spacecraft’s launch, SpaceX stood down from the 7th planned liftoff of the U.S. Space Force’s own X-37B reusable space plane, and even removed the Falcon Heavy rocket containing it from the Kennedy Space Center launch pad. The mission, known as USSF-52, was scrubbed on Wednesday (Dec. 13) to “perform additional system checkouts.” Exact reasons for this delay remain unknown, and a new date has yet to be set for launch. 

Keep reading

Saturn’s moon could harbour ALIEN life: Scientists discover organic molecules in Enceladus’ plume that suggest it could be habitable

It’s one of the most beautiful objects in our solar system, a shimmering sphere of pure white ice, hiding a liquid ocean within. 

But despite looking nothing like our planet, Enceladus, Saturn‘s sixth-largest moon, may have something in common with Earth – the presence of life. 

Scientists have discovered organic molecules in the moon’s plumes that could be supporting ‘communities’ of tiny microbes. 

Researchers think these compounds could support their metabolisms or the formation of amino acids. 

Experts already know that there are phosphates, methane, hydrogen and carbon dioxide on Enceladus – all potential signs of life as well.  

Keep reading

NASA IDENTIFIES 17 POTENTIALLY HABITABLE EARTH-SIZED ICY WORLDS, INCLUDING TWO COSMIC NEARBY NEIGHBORS

NASA researchers say they have identified 17 potentially habitable icy worlds that are approximately Earth-sized, including two that reside in our cosmic backyard.

Similar to the icy moons of Jupiter (Europa) and Saturn (Enceladus) in our solar system, these worlds are believed to contain massive oceans underneath an icy outer shell, where a combination of tidal forces and radiation might enable the types of life found in the deepest parts of Earth’s oceans.

The researchers also said that these icy worlds may contain surface geysers that erupt some of that water into space, where human-made telescopes could scan those plumes for signs of extraterrestrial life.

Dating back to the discovery of the first exoplanet in 1995, most efforts to search for life on other planets have focused on rocky worlds like Earth that orbit within their host star’s habitable zone, where temperatures would permit liquid water to exist on the planet’s surface. That’s because virtually all life on Earth uses liquid water, and Earth is the only place we have definitively found life.

For a long time, it was also believed that virtually all life forms required sunlight. However, recent discoveries of life forms in the deepest parts of Earth’s oceans that thrive in complete darkness have changed those calculations.

Dubbed “extremophiles,” these hardy organisms replace the light energy most life forms receive from the sun with thermal energy spewed by volcanic vents on the ocean floor. They also receive vital nutrients and other organic compounds from these vents, both of which are also critical to life.

These discoveries have led astrobiologists to redefine where they search for life outside Earth. Two of the most tantalizing targets are Europa and Enceladus. Scientists theorize that the tidal forces of their host planets and other moons combined with radiation energy generate enough internal heat energy that these icy moons may have oceans of seawater beneath their icy shells.

In 2005, NASA’s Cassini mission spotted geysers of water erupting from the surface of Enceladus, lending strong support to those theories. The space agency is even evaluating missions designed to fly spacecraft through those plumes and collect samples of the oceans below.

Keep reading