Latest news with #solarcorona
Forbes
2 days ago
- Science
- Forbes
In Photos: First Ever ‘Fake' Total Solar Eclipse Created In Space
The Sun's inner corona appears greenish in this image taken on 23 May 2025 by the ASPIICS ... More coronagraph aboard Proba-3, ESA's formation-flying mission capable of creating artificial total solar eclipses in orbit. This image, captured in the visible light spectrum, shows the solar corona similarly to how a human eye would see it during an eclipse through a green filter. The hair-like structures were revealed using a specialised image processing algorithm. The European Space Agency has published the first spectacular images of an artificial solar eclipse created in orbit. The pioneering images are from its Proba-3 mission, which features two satellites that fly in formation with millimeter precision, allowing scientists to study the sun's corona without waiting for rare natural eclipses. It's also the world's first precision formation flying mission. Launched on December 5, 2024, from India, Proba-3 is a two-year mission during which a total solar eclipse will be created for six hours in every 19.6-hour orbit. 'Our 'artificial eclipse' images are comparable with those taken during a natural eclipse," said Andrei Zhukov, Principal Investigator for ASPIICS at the Royal Observatory of Belgium. The Sun's inner corona, coloured artificially to appear violet, in an image taken on 23 May 2025 by ... More the ASPIICS coronagraph aboard Proba-3, ESA's formation-flying mission capable of creating artificial total solar eclipses in orbit. This image shows the corona in polarised white light, captured using a special technique which allows scientists to separate the hot corona's polarized light from the light scattered by interplanetary dust. 'The difference is that we can create our eclipse once every 19.6-hour orbit, while total solar eclipses only occur naturally around once, very rarely twice a year. On top of that, natural total eclipses only last a few minutes, while Proba-3 can hold its artificial eclipse for up to 6 hours.' One satellite, the Occulter, acts as an artificial moon, blocking the sun's light using a 1.4-meter-diameter disc. It flies exactly 150 meters in front of the Coronagraph satellite, covering the bright disc of the sun and casting an 8 cm shadow across onto its imager — mimicking how a total solar eclipse works on Earth. The Sun's inner corona, coloured artificially to appear dark green, in an image taken on 23 May 2025 ... More by the ASPIICS coronagraph aboard Proba-3, ESA's formation-flying mission capable of creating artificial total solar eclipses in orbit. The ASPIICS instrument captures the solar corona in two different 'spectral lines', each line corresponding to a different element contained in the coronal gases. This image shows observations in the coronal green line – a spectral line emitted by iron atoms that lost half of their electrons due to extremely high temperatures. This allows us to see the hottest contents of the corona, at up to 2 million degrees. On the upper left side, a hot loop can be seen extending from the Sun's surface into the corona, a structure which generally appears following a solar flare. Such a feat of engineering is essential to capture images of the sun's corona — the outer atmosphere of the sun. Only during a total solar eclipse can the corona be glimpsed from Earth's surface, and even then, only for a few minutes from any one location. The solar corona is a mysterious place. It reaches temperatures of over two million degrees Fahrenheit, significantly hotter than the sun's surface. Understanding this mysterious layer is essential for solar physicists because it's the origin of solar wind and space weather that can impact Earth's communications and power systems. The two spacecraft of Proba-3 fly in precise formation about 150 m apart to form an external ... More coronagraph in space, one spacecraft eclipsing the Sun to allow the second to study the otherwise invisible solar corona. The mission is based on some remarkable engineering. The Proba-3 satellites follow a highly elliptical 19.6-hour orbit ranging from 373 miles (600 km) at perigee to 37,000 miles (60,000 km) at apogee, flying in precision formation only near apogee. At apogee, they're as far away from Earth's gravitational force and atmospheric drag, enabling them to fly in formation autonomously, achieving eclipse-like conditions for six hours. The images you see here are created from three exposures and were processed by the ASPIICS Science Operations Centre at Belgium's Royal Observatory. 'Each full image – covering the area from the occulted sun all the way to the edge of the field of view – is actually constructed from three images," said Zhukov. 'The difference between those is only the exposure time, which determines how long the coronagraph's aperture is exposed to light. Combining the three images gives us the full view of the corona.' The paired Proba-3 satellites will have a highly elliptical orbit with an apogee (or top of orbit) ... More of around 60 000 km and perigee of 600 km. Coronagraph observation based on forming an artificial eclipse between the two satellites as well as active formation flying experiments taking place towards apogee, with passive formation flying taking place as the satellites circle closer to Earth. ESA has an open data policy, with all uncalibrated data and images available online to scientists and eclipse enthusiasts alike. Proba-3's mission will last two years, during which approximately 1,000 hours of solar corona images will be gathered. Once it runs out of propellant, it will de-orbit and burn up in Earth's atmosphere. Wishing you clear skies and wide eyes.
Times of Oman
3 days ago
- Science
- Times of Oman
Twin Proba-3 spacecraft create artificial solar eclipse
Paris: First came Solar Orbiter, the European Space Agency and NASA mission that revealed the sun's poles for the first time in early June. Then came Proba-3, less than a week later. It's another European mission, launched from India in December 2024, to observe the solar corona — the outer atmosphere of the sun. To do that, Proba-3 achieved yet another first. The mission consists of two spacecraft flying 150 metres (490 feet) apart. Together, they performed a millimeter-precision flying maneuver so that one cast a shadow over the other — creating an artificial solar eclipse. It allowed Proba-3 to block out the fierce face of the sun, leaving only its surrounding corona in view. No other spacecraft has observed the sun's corona as close to the solar rim. Why scientists are interested in the solar corona Scientists are somewhat baffled by the solar corona, and there are relatively few opportunities to observe it in its entirety. The solar corona has three distinct regions: the high corona, low corona and a gap in between. Though there are instruments to study the high corona and the low coronas, the gap is usually only possible to see from Earth during a natural solar eclipse. Another mystery: The solar corona is much hotter than the sun at its surface. Temperatures in the corona can reach higher than 1.1 million degrees Celsius (almost 2 million degrees Fahrenheit). The surface of the sun, however, rests at a cool 5,500 °C (around 10,000 °F). Perhaps stranger still, the sun's core is a blistering 15 million °C. Astronomers think that because the solar corona is far from the surface — and reaches far into space — it should be cooler, not hotter. Proba-3: A test of new space technology Proba-3's two spacecraft — Occulter and Coronagraph — create artificial solar eclipses every 19 hours and 36 minutes in orbit and hold their precision flying formation for six hours. Conventional telescopes would be blinded by the sun's light, unable to see the corona. But the Occulter blocks the light accurately. With a disc measuring just 1.4 metres (4.5 feet), it casts a mere eight centimetre (3.15-inch) wide shadow — enough to create an artificial eclipse. "It is exciting to see these stunning images validate our technologies," said Dietmar Pilz, ESA director of technology, said in a press release on Monday. They fly autonomously, using star trackers that help them recognise constellations and GPS for further positioning. New ways of seeing the sun on the rise Astronomers are quickly gaining new insights into the sun. In early June 2025, ESA and NASA released the first images of the solar poles as captured by the Solar Orbiter. The Solar Orbiter uses a newly designed orbit to see the poles and gathers data on the sun's magnetic field, solar cycle and how solar weather works. "The sun's poles are literally terra incognita," Sami Solanki, of the Max Planck Institute for Solar System Research, said in an ESA press release on June 11. NASA's Parker Solar Probe became the first spacecraft to fly through the solar corona in 2021. The probe was built to face the sun's heat and radiation and deliver some of the closest observations of our star. The Proba-3 mission also aims to improve scientific understanding of solar weather, such as coronal mass ejections and solar storms. Extreme solar weather can affect telecommunications satellites and power grids on Earth.
CNN
07-06-2025
- Entertainment
- CNN
Watch: ‘Plasma drops' falling toward the sun's surface
New tech reveals never-before-seen details in solar corona A breakthrough in adaptive optics technology captured the clearest images to date of the sun's corona. The incredible resolution of the new images could provide new insights on some of the mysteries surrounding our star. 01:14 - Source: CNN Former 'Diddy' girlfriend reveals 'love contract' A former romantic partner for Sean 'Diddy' Combs using the pseudonym 'Jane' described feeling financially coerced and revealed Combs is still paying for her rent, even as she testified against him at trial. Prosecutors hope the testimony by 'Jane' will drive home charges that include sex trafficking, racketeering conspiracy and transportation to engage in prostitution. Combs has pleaded not guilty to all charges. 01:30 - Source: CNN Student works shift after graduation. Customer raises $200k High school senior Mykale Baker went to his high school graduation, and after, decided to get some food for his family at Burger King, which is where he works. After seeing how short staffed they were, he decided to help out the team. Maria Mendoza saw him at work and started a GoFundMe page for him, which has raised almost $200 thousand dollars towards his college fund. 01:35 - Source: CNN Fans wait for hours to buy Nintendo Switch 2 Eager gaming fans lined up for hours to buy the Nintendo Switch 2 after it hit shelves around the world on June 5. It's Nintendo's first major console launch since the original Switch arrived roughly eight years ago. 00:25 - Source: CNN Greta Thunberg sails to Gaza Greta Thunberg has set sail with eleven other activists to Gaza. The activist group they're part of, The Freedom Flotilla Coalition, is attempting to bring aid and raise international awareness over the ongoing humanitarian crisis in the territory. 00:59 - Source: CNN Judge threatens to remove 'Diddy' from his own trial US District Judge Arun Subramanian warned the defense team for Sean 'Diddy' Combs that he will be removed from the New York City court room where he is on trial facing charges that include racketeering, sex trafficking and transportation to engage in prostitution. 01:18 - Source: CNN 'Good Night, and Good Luck's' scenic designer discusses how he created George Clooney's Broadway newsroom Scenic Designer Scott Pask recreated the CBS newsroom and Edward R. Murrow's set for "Good Night, and Good Luck," the play that brings the 1950s McCarthy-era drama to life. Pask tells CNN why architectural accuracy is important for a play that's about 'speaking truth to power.' Tune in to CNN on Saturday, June 7 at 7pm to watch the play broadcast live from Broadway's Winter Garden Theatre. 02:13 - Source: CNN Police shut down All-American Rejects backyard gig in college town The All-American Rejects played a backyard gig in Columbia, Missouri, as part of their House Party Tour protesting against expensive arena shows. Police eventually shut it down, but not before letting the band play one final song. 01:05 - Source: CNN Bringing 1950s style to Broadway Costume Designer Brenda Abbandandolo mixed vintage, thrifted clothing with precise recreations of 1950s style to bring the Broadway play Good Night, and Good Luck to life. She tells CNN how she approached dressing George Clooney and Ilana Glazer with historic authenticity. Tune in to CNN on Saturday, June 7 at 7pm to watch the play broadcast live from Broadway's Winter Garden Theatre. 01:53 - Source: CNN Cassie Ventura's friend testifies Diddy held her over a balcony Bryana Bongolan, a friend of Cassie Ventura who goes by Bana, testified today about an incident with Sean 'Diddy' Combs in 2016 when she said that she was 'held over a 17-story balcony' by the music mogul. CNN's Elizabeth Wagmeister reports. 01:48 - Source: CNN How fish skin saved this child's life Eliana DeVos received a dressing made with fish skin to help her recover from a serious bacterial infection that left an open wound on her neck. CNN's Jacqueline Howard spoke with Eliana's mom and her health team at Driscoll Children's Hospital about the healing process. 02:30 - Source: CNN Millions of bees buzz around Washington state roads after truck overturns Millions of bees escape after a truck carrying honeybee hives overturned in Whatcom County, Washington, and rolled into a ditch. Local beekeepers were called to the scene. 00:42 - Source: CNN Taylor Swift buys back her entire music catalogue Roughly six years after Taylor Swift protested the sale of her master recordings by her former record label, she now owns her entire catalog of music. Swift announced the news in a letter posted to her website. 01:28 - Source: CNN 108-year-old submarine wreck seen in new footage Researchers from the Woods Hole Oceanographic Institution captured close-up images of a WWI-era submarine lost at sea 108 years ago. 00:40 - Source: CNN Car flies off the road, crashes into a roof Video shows a car fly off the road and into a veterans hall in Missouri, police say as a result of speeding. This is the second time in three months a car crashed into the same building. The veterans hall will be closed for months for a second time after the latest crash, according to CNN affiliate KCTV. 00:38 - Source: CNN 'The Handmaid's Tale' star reacts to parting scene with June O-T Fagbenle reflects on wrapping "The Handmaid's Tale," Luke's evolution, and the emotional final scene with June as the series ends after six seasons. 02:04 - Source: CNN Elephant seal in Cape Town wanders into suburbia, stops traffic and wins the hearts of locals A Southern elephant seal makes a surprise visit to the residential neighborhood of Gordon's Bay in Cape Town, South Africa, and triggers an almost nine-hour rescue effort to return him to the coast. 00:57 - Source: CNN Why e.l.f. just bought Hailey Bieber's beauty brand for $1 billion e.l.f. Beauty is buying Hailey Bieber's makeup brand, Rhode, for $1 billion. Founded in 2022, Bieber's brand racked up $212 million in net sales in its last fiscal year. 01:11 - Source: CNN
