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Nasa
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Image Credit: Nasa
NASA Reveals Semifinalists of Power to Explore Challenge
- NASA has announced the 45 student essays selected as semifinalists for the 2024-2025 Power to Explore Challenge, focusing on radioisotopes in space missions.
- Participants were tasked with envisioning their 'superpower' to energize their own radioisotope-powered mission to explore moons in our solar system.
- This year's competition garnered a record number of entries, with 2,051 submissions from across the United States, territories, and DoDEA Overseas.
- Students were encouraged to learn about radioisotope power systems and engage with NASA's workforce in the challenge.
- Entries were divided into three grade categories, with 15 national semifinalists selected from each category for a total of 45 semifinalists.
- Finalists for the challenge will be announced on April 23, and participants will receive a NASA RPS prize pack.
- The challenge is supported by the NASA Science Mission Directorate's Radioisotope Power Systems Program Office and managed by Future Engineers.
- The competition aimed to inspire students to explore space missions powered by radioisotopes and celebrate their own strengths.
- Selected semifinalists come from diverse locations across the United States, showcasing their creativity and passion for space exploration.
- The Power to Explore Challenge provides students with an opportunity to engage with NASA's mission and learn about cutting-edge technology in space exploration.
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Nasa
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Image Credit: Nasa
NASA Astronauts to Answer Questions from Students in New York
- NASA astronauts Anne McClain and Nichole Ayers will answer science, technology, engineering, and mathematics-related questions from Richmond Hill, New York.
- The 20-minute space-to-Earth call will be broadcast on NASA+ at 12 p.m. EDT on March 26.
- The event aims to inspire Richmond Hill High School students to pursue STEM careers.
- As part of NASA's Artemis campaign, astronauts will be sent to the Moon to prepare for future Mars exploration.
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Nasa
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Image Credit: Nasa
New Crew’s First Week Ends with Space Biology and Advanced Technology
- The Expedition 72 crew completed a week of research in space biology and advanced technology.
- NASA Flight Engineer Nichole Ayers conducted the Drain Brain 2.0 experiment to measure blood flow in her neck, aiming to improve health screening for astronauts and heart condition treatments on Earth.
- JAXA's astronaut Takuya Onishi set up a space exercise experiment to counteract the effects of weightlessness.
- NASA Flight Engineers Anne McClain and Don Pettit conducted vision checks to monitor the effects of space on astronauts' eyes.
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Arstechnica
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Image Credit: Arstechnica
Trump White House drops diversity plan for Moon landing it created back in 2019
- The Trump White House has dropped the diversity plan for the Moon landing that it created back in 2019.
- Previously, the Artemis program aimed to include more international partnerships, women, and people of color in the crew.
- The last act of the first Trump administration was naming a diverse subset of astronauts for the Artemis program.
- The decision to drop the diversity plan has raised concerns about inclusivity and representation in future space missions.
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Livescience
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Image Credit: Livescience
Extraterrestrials quiz: Are you an alien expert, or has your brain been abducted?
- Extraterrestrials quiz: Are you an alien expert, or has your brain been abducted?
- The extraterrestrial quiz tests your knowledge about aliens and the mysteries surrounding their existence.
- Log in to put your name on the leaderboard and find out if you know the facts from fiction.
- The quiz offers hints, and once you're done, you can share your score in the comments.
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Knowridge
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Image Credit: Knowridge
A Dyson swarm made of solar panels would make earth uninhabitable
- A new paper explores the concept of a Dyson swarm, a megastructure made of solar collecting satellites surrounding a star.
- The paper concludes that a complete Dyson swarm outside the orbit of Earth would raise our temperature by 140 K, making Earth uninhabitable.
- A compromise suggested a partial Dyson swarm placed at 2.13 AU from the Sun, harvesting 4% of solar energy while increasing Earth's temperature by less than 3K.
- The construction of a Dyson swarm would require a massive amount of silicon, about 1.3×10²³ kg.
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Nasa
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Image Credit: Nasa
NASA to Cover Northrop Grumman’s 21st Cargo Space Station Departure
- Northrop Grumman’s Cygnus spacecraft is departing from the International Space Station after delivering over 8,200 pounds of supplies.
- The spacecraft will be released on March 28 and commanded to deorbit on March 30 to safely burn up in Earth's atmosphere.
- This mission marks Northrop Grumman's 21st commercial resupply mission to the space station for NASA.
- NASA's live coverage of the undocking and departure can be watched on various platforms, including NASA+.
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Digitaltrends
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Image Credit: Digitaltrends
The strange historical saga of an astronaut’s forbidden sandwich
- In 1965, astronaut John W. Young brought a corned beef sandwich to space, leading to controversy.
- Young's confession during a press conference caused a fallout involving NASA and Congress.
- The incident highlighted the importance of food quality for astronauts' well-being.
- Current astronauts now have a wider variety of food options and even grow their own produce.
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Popsci
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Image Credit: Popsci
The sun has literally set on the British Empire
- Britain reached an agreement to return the Chagos Islands to Mauritius, marking the end of the British Empire.
- One section of the British Antarctic Territory, including the Pitcairn Islands, experienced perpetual sunlight for six months each year.
- On March 20, during the spring equinox, the sun set on the British Empire, ending a major chapter in world history.
- While the British Empire's literal sunset occurred, light began to peek over the horizon in Akrotiri and Dhekelia, two British territories on the island of Cyprus.
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Nasa
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Image Credit: Nasa
3D Printing: Saving Weight and Space at Launch
- Adapting 3D printing for space missions can allow crew members to create tools and parts on the spot.
- Metal 3D printing investigation on the International Space Station improves understanding of printing in space.
- Plastic and other materials are also being tested for 3D printing in space.
- Bioprinting, optical fiber production, and crystal growth are other manufacturing techniques being explored in space.
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Insider
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Image Credit: Insider
China is testing experimental 'dogfighting' satellites in space, US general says
- China is testing experimental satellites capable of performing complex coordinated space maneuvers.
- US general observed 5 objects maneuvering in synchronicity and control.
- The Chinese satellite program raises concerns about military capabilities in space.
- Calls for a treaty to establish acceptable behavior in space to avoid accidental conflict.
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Earthsky
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Image Credit: Earthsky
The Enhanced Fujita Scale rates the strength of a tornado
- The Moore, Oklahoma, EF5 tornado occurred on May 20, 2013, earning the top ranking on the Enhanced Fujita Scale.
- The Enhanced Fujita Scale assesses tornado strength by using damage indicators and degrees of damage estimated by NWS meteorologists.
- Tornadoes are rated from EF0 to EF5, with EF4 and EF5 being classified as violent and accounting for only 2% of all tornadoes.
- The EF scale estimates wind gusts to determine tornado strength based on different points of damage along the suspected path.
- The original Fujita Scale was updated to the Enhanced Fujita Scale in 2007 to better reflect damage in relation to wind speed and structural design.
- NWS meteorologists spend hours surveying tornado paths, identifying damage indicators and degrees of damage to determine the final EF rating.
- The history of the Enhanced Fujita Scale dates back to Ted Fujita's development of the original Fujita scale in 1971 for categorizing tornado intensity.
- An EF5 tornado hit Moore, Oklahoma in 2013, causing significant devastation, resulting in 24 fatalities and over 200 injuries.
- The EF5 tornado was on the ground for 40 minutes, covering 14 miles and reaching a width of 1.1 miles.
- The Enhanced Fujita Scale is crucial for meteorologists to rate tornado strength accurately based on damage assessments.
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Digitaltrends
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Image Credit: Digitaltrends
The most distant galaxy ever discovered holds a surprising secret
- The most distant galaxy known, JADES-GS-z14-0, has been discovered with indications of oxygen present.
- The galaxy formed very rapidly and is maturing quicker than expected, challenging previous models of early universe.
- The discovery was made using a ground-based telescope called ALMA and James Webb Space Telescope.
- The findings raise questions about the timing and process of galaxy formation in the early universe.
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Earthsky
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Image Credit: Earthsky
Inferior conjunction of planet Venus on March 22-23, 2025
- Venus reaches an inferior conjunction on March 22-23, 2025, passing between Earth and the sun.
- Venus gains a lap on Earth every 19.5 months and moves faster in orbit due to its smaller orbit size.
- During inferior conjunction, Venus crosses the sky with the sun, making it difficult to observe without proper equipment.
- Venus officially shifts from the evening to the morning sky at the moment of inferior conjunction in 2025.
- Transits of Venus are rare, with the next ones predicted for December 10-11, 2117, and December 8, 2125.
- Venus will be visible low in the east before sunrise from around March 20, 2025, becoming a bright morning 'star' by April.
- The 1.6-year synodic period of Venus creates an 8-year cycle of inferior conjunctions that resemble each other on an 8-year cycle.
- Experienced observers may spot Venus near inferior conjunction through a telescope, observing its thin crescent shape.
- Keep in mind the safety precautions of observing Venus near the sun and wait until sunset or sunrise to avoid glare.
- Venus emerges in the morning sky after the 2025 inferior conjunction, transitioning from the evening sky.
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Earthsky
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Image Credit: Earthsky
Is Sirius the most luminous star in the sky?
- Sirius, the brightest star in the night sky, is not the most luminous star.
- Luminosity refers to a star's intrinsic brightness, and if all stars were equally distant from Earth, Sirius would not be the brightest.
- Sirius appears bright because it is close to Earth, only 8.6 light-years away.
- There are stars in the constellation Canis Major, such as Aludra, Wezen, and Omicron 2, that are believed to be much more luminous than Sirius.
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