Sunday, November 17

Science

Ahead of Spacewalks: Expedition 69 Astronauts on a Solar Mission 2023
Science

Ahead of Spacewalks: Expedition 69 Astronauts on a Solar Mission 2023

After computer-simulated robotic training, NASA astronauts will install another ISS solar array on Thursday. Three cosmonauts are also planning for a spacewalk next week to replace hardware and examine modules. The station had regular maintenance and health checks. Today, four Expedition 69 astronauts trained computer-simulated robotic movements for a spacewalk on Thursday, June 15. Three cosmonauts are preparing for another spacewalk from the Roscosmos section of the ISS next week. The spacewalkers will install the orbiting outpost's sixth roll-out solar array on the starboard truss section opposite the fifth array they deployed on Friday, June 9. NASA TV will stream the spacewalk on its app and website at 7:30 a.m. NASA's app and website will stream the spacewalk at 7:3...
Earth had 19-hour days one billion years ago 2023
Science

Earth had 19-hour days one billion years ago 2023

The Moon was closer when days were shorter. The Moon is using rotational energy to rise higher. New study reveals the effect was more significant than expected. Scientists found that over a billion years, the Sun and Moon's tidal forces balanced, making days 19 hours long. Scientists understood that as the Moon travels away from the Earth, days grew longer, but they thought it was a sluggish process. Nature Geoscience reported the findings. “Over time, the Moon has stolen Earth’s rotational energy to boost it into a higher orbit farther from Earth,” explains research lead author Ross Mitchell. Older models predicted a progressive drop in day duration into the planet's distant history, but the researchers found none. One billion years ago Earth had 19-hour days. Measurement...
UAE seeks corporations to construct asteroid belt spacecraft 2023
Science

UAE seeks corporations to construct asteroid belt spacecraft 2023

The UAE Space Agency is seeking business partners for its most ambitious space project, a voyage to an asteroid belt between Mars and Jupiter. On Wednesday, 'Space Means Business' debuted, offering 30 possibilities for local and international enterprises to build the MBR Explorer spacecraft. It will fly by six asteroids and arrive on the seventh in 2028 on a five-billion-kilometer trek. In an interview with The National, Emirates Mission to the Asteroid Belt programme head Mohsen Al Awadhi said 84 UAE space businesses have expressed interest. “This campaign is making all the opportunities available to businesses very clear,” he added. Boosting UAE economy The Laboratory for Atmospheric and Space Physics at the University of Colorado Boulder was contracted to create t...
BepiColombo prepares for its third transit of Mercury 2023
Science

BepiColombo prepares for its third transit of Mercury 2023

On June 19, the ESA/JAXA BepiColombo mission will fly near Mercury at 236 km. The ESA spacecraft operation team is steering BepiColombo through its third of six Mercury gravity assist flybys. The spacecraft needs the flybys and more than 15,000 hours of hard solar electric propulsion operations to overcome the Sun's immense gravitational pull and lose enough energy to be caught into Mercury's orbit in 2025. Monday’s flyby will be closest at 19:34 UTC (21:34 CEST). BepiColombo will approach Mercury on the night side, thus its monitoring cameras will capture Mercury's most fascinating features 13 minutes later. 20 June should see the first photos. Flybys, thrusters The flyby allows BepiColombo to harness Mercury's gravity to navigate the inner Solar System. The project la...
Scientists Find Fastest Milky Way Runaway Star 2023
Science

Scientists Find Fastest Milky Way Runaway Star 2023

The fastest runaway star in the Milky Way was found after six more were found. Two of the stars had record-breaking heliocentric radial velocities for runaway stars. J1235 travels 1,694 kilometers (1,053 miles) every second, and J0927 2,285 kilometers (1,420 miles). Four of the newly measured objects are hypervelocity stars, traveling at speeds that exceed the escape velocity of the Milky Way, and all four, according to a team led by Harvard-Smithsonian Center for Astrophysics astrophysicist Kareem El-Badry, are likely the result of spectacular Type Ia supernovae, the "standard candles" by which we measure the Universe. This has allowed them to calculate the birth rate of these stars, which matches the anticipated rate of Type Ia supernovae. The Open Journal of Astrophysics publi...
Solar panels function how? PV cells convert sunlight to energy 2023
Science

Solar panels function how? PV cells convert sunlight to energy 2023

We have kinetic, potential, chemical, and acoustic energy. Each contains qualities and fuel processes that make life possible, such as driving or lighting a fire. The Sun provides Earth's energy. The Sun keeps Earth alive. sun panels convert sun energy into electricity. Solar panels function how? Solar energy and PV technologies are explained here. Solar energy? Sunlight powers solar energy. Fusion creates it. Stars generate energy through nuclear fusion. Hydrogen molecules clash at the sun's core owing to pressure and density. This collision creates helium. These molecules combine and release energy. Waves and particles from the sun travel across the solar system. National Geographic says electromagnetic radiation causes heat, light, and energy. Solar energy sustains...
China restores ecology through technological means 2023
Science

China restores ecology through technological means 2023

Most people see satellite remote sensing photographs as color pictures, but Shandong University of Science and Technology professor Sun Lin and his team see them as a "treasure" full with information. Sun said algorithm research and model creation enable researchers evaluate satellite remote sensing photographs and find the underlying information. He noted that satellite remote sensing images are crucial to ecological restoration and governance, monitoring large-scale straw burning and forest fires, surface water pollution, air pollution, and solid waste accumulation, and analyzing forests, grasslands, and wetlands. Chinese modernity emphasizes human-nature harmony. "Harmonious coexistence between man and nature" suggests a new approach for China's ecological restoration and g...
Geomagnetic storms and unusual aurora borealis start the solar peak with a “termination event.” 2023
Science

Geomagnetic storms and unusual aurora borealis start the solar peak with a “termination event.” 2023

Aurora borealis were visible near the equator on April 23. Texas and Extremadura, Spain, where astrophotographer Lorenzo Cordero took NASA's finest shot of the day, saw the stunning scene. Consuelo Cid Tortuero, researcher at the University of Alcalá and scientist at the National Service of Space Meteorology (SeNMEs), says a solar filament generated one of the strongest magnetic storms in recent years. According to NCAR director Scott W. McIntosh, the maximum of the solar peak has shifted forward a year. McIntosh based his forecast on 20 years of solar intensity data from 1750 and his sunspot record. The experts predict a "termination event" in late 2023 or early 2024, when intensity will climax. An 11-year solar cycle abruptly stops, reversing the star's polarity, and begins a...
Scientists Beam Solar Energy From Space To Earth For First Time; Netizens Ask ‘Isn’t Sun Doing That For Years’ 2023
Science

Scientists Beam Solar Energy From Space To Earth For First Time; Netizens Ask ‘Isn’t Sun Doing That For Years’ 2023

A space solar power prototype was able to effectively demonstrate its capacity to transport solar electricity wirelessly via space for the very first time, which is a significant breakthrough in the field. In addition to this, it was successful in directing a large quantity of energy toward Earth, which represents a tremendous feat. Because it is unaffected by things that occur on Earth, such as day and night cycles, cloud cover, and weather conditions, the abundant solar energy in space continues to exist without interruption. The experiment shows that spacecraft can have unlimited solar power. Solar panels can be installed almost anywhere on the surface of the Earth, but it is estimated that space-based collectors have the potential to create up to eight times more energy than...
Hubble photographs a 700-million-light-year jellyfish galaxy 2023
Science

Hubble photographs a 700-million-light-year jellyfish galaxy 2023

This picture was taken by the Hubble Space Telescope and published by NASA on Friday. It shows the jellyfish galaxy JO206 as it travels through the cosmos around 700 million light-years away from our planet in the constellation Aquarius. The picture focuses primarily on the brightly colored star-forming disk of the jellyfish galaxy, which is encircled by dazzling clouds of dust. The remainder of the picture is rather devoid of detail, with the exception of few brilliant stars in the front and several diffraction spikes that stand out against the pitch-black background of space. NASA captured a "jellyfish galaxy" travelling through a galactic cluster as the intra-cluster medium removed its gas The resemblance between jellyfish galaxies and their marine namesakes is plain to see in...