Latest news with #space
Yahoo
2 hours ago
- Science
- Yahoo
The James Webb Space Telescope has photographed its first undiscovered planet
When you buy through links on our articles, Future and its syndication partners may earn a commission. Photographers often can't get enough light – but by blocking out some light, the largest telescope launched into space has photographed what could be its first previously undiscovered planet. NASA's James Webb Space Telescope has photographed what researchers believe is a new exoplanet, dubbed TWA 7 b. While the new exoplanet is estimated to be around the mass of Saturn, the TWA 7 b is believed to be the lightest planet ever seen using the Mid-Infrared Instrument imaging. The exoplanet orbits the star TWA 7, around 34 light-years from Earth. One of the challenges in locating new, distant planets is that the stars they orbit typically give off so much light that the planet's dimmer light is lost in the star's brightness. The James Webb Space Telescope compensates for this using the coronagraph technique. A coronagraph is a technique that requires blocking off light from a star in order to see objects otherwise lost in the star's brightness. By blocking off the star's brightness – the black circular gap marked by the star icon in the photograph above – scientists were able to see evidence of TWA 7 b. The new exoplanet hasn't yet been confirmed – NASA notes that there's a small chance that the object in the photograph is a background galaxy rather than an exoplanet. But as scientists continue to research the find, the evidence points to the shape being the James Webb Telescope's first discovery of a previously unknown planet. The telescope's ability to photograph the mid-infrared has enabled the James Webb to aid scientists in studying distant but known planets for the last three years. Now, the technology inside the telescope has allowed for the discovery of what appears to be an undiscovered planet. The James Webb Telescope – the largest ever to launch into space – is designed to detect light outside what humans can see with the naked eye. The near and mid-infrared capabilities of the telescope are helping scientists explore what NASA describes as otherwise hidden regions of space. Infrared technology is key to photographing distant space objects through clouds of dust, as well as low-energy stars and planets like brown dwarfs and young protostars. The infrared technology inside the James Webb has allowed the TWA 7 b to be detected through the three dust rings that surround that system's star. The exoplanet is positioned in a gap in the dust disks, leading scientists to theorize that the planet could be what's shaping the dust structures. While ongoing work is needed to confirm the object as a planet and record additional observations, the photograph also illustrates Webb's potential to find previously unseen planets. The research was published earlier this week in Nature. Browse the best lenses for astrophotography or find inspiration in these star photography tips.
Yahoo
2 hours ago
- Science
- Yahoo
How do I know if I found a meteorite?
After a suspected meteor fell in metro Atlanta on Thursday afternoon, meteorite hunters are searching for fragments. But how do you know if you found a meteorite or just a rock? The United States Geological Survey has the answer to just that. [DOWNLOAD: Free WSB-TV News app for alerts as news breaks] The USGS says they adapted these tips from the University of New Mexico Meteorite Museum. Density: Meteorites are usually quite heavy for their size, since they contain metallic iron and dense minerals. Magnetic: Since most meteorites contain metallic iron, a magnet will often stick to them. For 'stony' meteorites, a magnet might not stick, but if you hang the magnet by a string, it will be attracted. Unusual shape: iron-nickel meteorites are rarely rounded. Instead, they have an irregular shape with unusual pits like finger prints in their surface called 'regmaglypts.' Fusion crust: stony meteorites typically have a thin crust on their surface where it melted as it passed through the atmosphere. Meteorites do NOT have the following: Light-colored crystals: Quartz is a common, light-colored crystal in Earth's crust, but it is not found on other bodies in the solar system. Bubbles: volcanic rocks or metallic slag on Earth often have bubbles or vesicles in them, but meteorites do not. Streak: if you scratch a meteorite on an unglazed ceramic surface, it should not leave a streak. A dense rock that leaves a black or red streak probably contains the iron minerals magnetite or hematite, respectively, neither of which are typically found in meteorites. The scientists at the USGS say they don't verify meteorites. RELATED STORIES: Meteorite hunters searching for fragments in Henry County 'Fireball' in the sky seen across metro Atlanta What did you see falling through the sky? A meteor or meteorite? 'It was really, really scary': People across metro in shock as fireball falls from the sky Channel 2's Audrey Washington caught up with meteorite hunters in Henry County where they believe they found a fragment on Friday afternoon. [SIGN UP: WSB-TV Daily Headlines Newsletter]
Yahoo
2 hours ago
- Science
- Yahoo
Listen to the Andromeda galaxy's stars played as musical notes in eerie NASA video
When you buy through links on our articles, Future and its syndication partners may earn a commission. The Andromeda galaxy's spiralling stars are played as musical notes in a new NASA observatory video, creating a cosmic crescendo that's out of this world. The sonification video, released by NASA's Chandra X-ray Observatory, combines observations of the Andromeda galaxy collected by some of the world's most powerful telescopes, according to a NASA statement. Chandra also released a spectacular composite image of the galaxy, which is the closest spiral galaxy to our own Milky Way. Researchers created the composite image by stacking photos taken in different light wavelengths, merging radio, infrared, optical, ultraviolet and X-ray data. The researchers then converted those images to sound by assigning a separate range of notes to each of these wavelengths. In the video, a line passes across the lights, playing each assigned note like keys on a piano. "Musical notes ring out when the line encounters light," a representative for NASA wrote in the statement. "The lower the wavelength energy, the lower the pitches of the notes. The brighter the source, the louder the volume." NASA described the composite image as a tribute to pioneering astronomer Vera Rubin, who studied Andromeda. The tribute comes days after a new observatory named after Rubin released its first images. The Vera C. Rubin Observatory features the world's largest digital camera and will spend the next decade creating a time-lapse movie of the universe. Related: 6 incredible objects hidden in Vera C. Rubin Observatory's mind-boggling first image Andromeda, or Messier 31 (M31), is located around 2.5 million light-years from the Milky Way. Studying the galaxy has led to many scientific discoveries. For example, Rubin and her colleagues' observations of Andromeda led them to conclude that there must be an unseen matter influencing how its spiral arms rotate, according to the statement. The research was pivotal in furthering scientists' understanding of dark matter, an enigmatic non-luminous substance that shapes the universe. Researchers created the new image and soundscape of Andromeda by combining different data collected over many years. For example, the X-ray image comes from data collected by Chandra and the European Space Agency's X-ray Multi-Mirror Mission (XMM-Newton). Researchers used this data to identify high-energy radiation around the supermassive black hole at the heart of Andromeda, according to the statement. RELATED STORIES —Monster black hole jet from the early universe is basking in the 'afterglow' of the Big Bang —'This doesn't appear in computer simulations': Hubble maps chaotic history of Andromeda galaxy, and it's nothing like scientists expected —James Webb telescope unveils largest-ever map of the universe, spanning over 13 billion years The images and sounds aren't just for fun. They are another way of examining Andromeda, and therefore a learning opportunity. Andromeda offers a view of a spiral galaxy that we can't get from the Milky Way, given we're inside it, and so studying Andromeda furthers researchers' understanding of our own spiral galaxy, according to the statement. "This collection helps astronomers understand the evolution of the Milky Way, our own spiral galaxy, and provides a fascinating insight into astronomical data gathering and presentation," the NASA representative wrote.
Yahoo
2 hours ago
- Science
- Yahoo
NASA satellite emits 'spark' decades after going dormant: Astronomers think they know why
A NASA satellite that had been dead for nearly six decades issued a surprising sign of life. In June 2024, a team of astronomers were perplexed when a radio telescope in Australia scanning the sky over the southern hemisphere came across unusual radio waves. The burst of radiation was very bright, exceedingly quick – and much closer to Earth than the scientists would have thought. After studying the source of the strange cosmic phenomena, the researchers were even more mystified when it appeared to be originating from the same location as a NASA spacecraft that went offline about 58 years ago, according to a press release about the discovery released June 25, 2025. Don't be fooled, though: The defunct spacecraft that operated for about three years in the 1960s isn't kicking back on to resume operations anytime soon. So, what's going on? Here's what to know about the strange signal, and how astronomers tracked it to a defunct NASA satellite. Astronomers tracked the source of the radio waves to a location that matches that of NASA's defunct Relay 2 spacecraft, a communications satellite that launched into orbit in 1964 from Cape Canaveral, Florida. The spacecraft operated until June 1967 after both of its onboard transponders failed. So, has the long-dead satellite has suddenly sprung back to life after nearly six decades? Astronomers say that's unlikely. Rather, the waves more likely came from a "spark" of built up electricity, which emitted a pulse as it jumped from one part of the spacecraft to another while passing through charged environment above Earth's atmosphere, according to the researchers. The team of astronomers discovered the strange signal while hunting for bright, powerful flashes of electromagnetic radiation in the distant universe known as fast radio bursts. Most surprising to the researchers, all of whom are from the International Centre for Radio Astronomy Research, was that the signal spotted June 13, 2024, didn't originate from a far-flung galaxy. Instead, it originated in our own cosmic neighborhood in the Milky Way. While incredibly bright, the event only lasted less than 30 nanoseconds. The astronomers detected it using Australia's national science agency's (CSIRO) ASKAP radio telescope. Clancy James, an astrophysicist at Curtin University in Australia's Perth campus, then led a team that studied the extremely bright source of radio waves to determine its source. While the satellite signal is one possible explanation, the researchers have also theorized that an impact with a tiny particle of space debris, known as a "micrometeoroid," could have caused the anomaly. Such impacts can create short-lived clouds of hot, charged gas that produce bursts of radio waves. The discovery marks the first time that a spark of built-up electricity has been observed to be both so bright and so short in duration. Now that the detection has been made, the finding not only demonstrates how astronomers can help identify the origin of these kinds of signals in the future, but could even help humanity better understand how electrostatic discharges can pose a danger to satellites in Earth's orbit. "Detections like this show how the tools developed to study the distant Universe can help scientists understand the increasingly crowded and critically important space environment close to Earth," the researcher said in a statement. The research has been accepted for publication in Astrophysical Journal Letters. A pre-print version of the paper is available on arXiv. Eric Lagatta is the Space Connect reporter for the USA TODAY Network. Reach him at elagatta@ This article originally appeared on USA TODAY: Dead NASA satellite from Florida emits 'spark' 6 decades later: Why?
TechCrunch
3 hours ago
- Business
- TechCrunch
Why Robinhood's co-founder is betting on solar power from space
As the co-founder of Robinhood, Baiju Bhatt helped redefine how millions of people interact with trading and investing. Now he's setting his sights even higher — literally — with Aetherflux, a new venture aiming to harness solar power in space. In this chat, Bhatt talks about what drew him to one of the most audacious bets in tech, how building in hard science compares to fintech, and why big risks still matter. Bhatt joined TechCrunch at our StrictlyVC Menlo Park event in June 2025, among several other speakers whose discussions you can find here.
