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Space News
Universe Today
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Image Credit: Universe Today
Astronaut Don Pettit is Serious, He Rigged up Astrophotography Gear on the ISS
- Astronaut Don Pettit has rigged up astrophotography gear on the ISS.
- Astrophotography is challenging due to the Earth's rotation, causing stars to blur.
- The ISS's low orbit makes astrophotography difficult due to fast star drift.
- Pettit created a homemade camera mount to capture detailed, low-motion blur images from space.
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Popsci
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Image Credit: Popsci
Enormous black hole napping after eating a ton of gas
- The James Webb Space Telescope (JWST) has detected a dormant black hole that is laying dormant after consuming too much matter in the early universe, existing just 800 million years after the big bang.
- For a black hole this large (400 million times the mass of our sun), it is not actively eating gas, according to the scientists who discovered it.
- This black hole is so large that it makes up about 40% of the total mass of its host galaxy.
- Typically, black holes are detected by a tell-tale glow of a swirling accretion disc that forms near the black hole's edges and the gas in the accretion disc becomes extremely hot.
- According to the scientists, the most likely scenario to explain this is that black holes go through short bursts of ultra-fast growth and then long periods of dormancy.
- Their computer simulations show that the black holes can actually exceed the predicted limit and then grow very quickly before a long period of inactivity.
- Black holes such as this one likely eat for roughly five to 10 million years and then sleep for about 100 million years.
- Most of the black holes are expected to be in this dormant state, which makes it more challenging to detect them.
- These findings challenge the current understanding of how black holes develop.
- The team is excited to think there are so many more dormant black holes that could be found.
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Nasa
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Image Credit: Nasa
NASA Open Science Reveals Sounds of Space
- NASA has converted astronomy data into audio files, allowing the public to experience space through sound.
- The project, called 'A Universe of Sound,' includes sonifications created from data gathered by the Chandra X-ray Observatory and other observatories.
- The sonifications represent different wavelengths of observation with musical instruments or synthesized sounds.
- The initiative aims to make NASA data accessible to people with visual impairments and promote collaboration in open science.
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Knowridge
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Image Credit: Knowridge
How we could find advanced civilizations that ran out of fusion fuel
- A recent study looks at how Deuterium-Deuterium (DD) fusion, the most basic isotopic fusion reaction, can be used as a potential technosignature for advanced civilizations. In the study, researchers looked at how long-lived extraterrestrial civilizations may deplete their supplies of deuterium over time, something that would be detectable by space telescopes. Advanced civilizations may adopt fusion power to meet their growing energy needs as they continue to grow and ascend the Kardashev Scale. Deuterium has a natural abundance in Earth’s oceans of about one atom of deuterium in every 6,420 atoms of hydrogen. Extracting deuterium would decrease the D/H ratio of the ocean, which would be detectable in atmospheric water vapor. Low values of D/H in an exoplanet’s atmosphere along with helium could be used to detect a highly advanced and long-lived civilization. The beauty of this approach is that the low D/H values in an exoplanet’s atmosphere would persist long after a civilization went extinct, migrated off-world, or became even more advanced and “transcended."
- A team of researchers considered how evidence of deuterium-deuterium (DD) fusion could be used as a potential technosignature in the Search for Extraterrestrial Intelligence (SETI).
- It has been suggested by many SETI researchers and scientists that advanced civilizations will adopt fusion power to meet their growing energy needs as they continue to grow and ascend the Kardashev Scale.
- Deuterium has a natural abundance in Earth’s oceans of about one atom of deuterium in every 6,420 atoms of hydrogen.
- Extracting deuterium would decrease the D/H ratio of the ocean, which would be detectable in atmospheric water vapor.
- Low values of D/H in an exoplanet’s atmosphere (along with helium) could be used to detect a highly advanced and long-lived civilization.
- Advanced civilizations may adopt fusion power to meet their growing energy needs as they continue to grow and ascend the Kardashev Scale.
- The team used the Spectral Mapping Atmospheric Radiative Transfer (SMART) model to identify the specific wavelengths and emission lines for HDO and H2O.
- This approach is useful as the low D/H values in an exoplanet’s atmosphere would persist long after a civilization went extinct, migrated off-world, or became even more advanced and “transcended”.
- The findings of the study will be useful for future surveys involving the James Webb Space Telescope (JWST), NASA’s proposed Habitable Worlds Observatory (HWO), and the Large Interferometer For Exoplanets (LIFE).
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Universe Today
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Image Credit: Universe Today
Drone Test Flights Are Being Tested for Flights on Alien Worlds
- A team of engineers is investigating ways to release drones from satellites in orbit to explore alien atmospheres without having to land.
- Drones are cost-effective and versatile tools for studying planetary atmospheres and inaccessible surface areas, providing valuable imaging and data.
- The successful example of the Ingenuity drone on Mars has demonstrated the potential of controlled flight and exploration on alien worlds.
- NASA engineers from the Armstrong Flight Research Center have conducted test flights with atmospheric probes, aiming to release them from higher altitudes and eventually from satellites in orbit.
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Arstechnica
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Image Credit: Arstechnica
Russian space chief says country will fly on space station until 2030
- Russia's chief space official, Yuri Borisov, announced that the country plans to participate in the International Space Station project until 2030.
- The final decision will be made after the transition to a new NASA administration.
- Previously, Russia had stated its intention to leave the station partnership after 2024.
- The US space agency hopes to continue flying the station until 2030 with potential private space station replacements thereafter.
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Universe Today
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Image Credit: Universe Today
One of the Most Interesting Exoplanets Just Got Even More Interesting!
- The exoplanet Trappist-1b, located 40 light years away, has shown signs of a changing crust and potentially an atmosphere.
- Trappist-1 is a system of exoplanets orbiting a dwarf star in the constellation of Aquarius.
- Researchers used the James Webb Space Telescope to measure thermal radiation from Trappist-1b and found a surface composed of largely unchanged material.
- The observations suggest the presence of volcanic activity, plate tectonics, or a thick carbon dioxide-rich atmosphere.
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Earthsky
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Image Credit: Earthsky
New Year’s Star Sirius and 2 planets ring in 2025
- The star Sirius, sometimes called the New Year's star, can be found in the nightime sky every year around New Year's Eve. In 2025, Sirius will be joined by two bright planets, Jupiter and Mars, making for quite a sight to see.
- Jupiter is especially bright right now because Earth just passed between Jupiter and the sun. Meanwhile Earth will pass between Mars and the sun in January 2025, making Mars quite bright as well.
- Orion's Belt always points towards the star Sirius, making it easy to identify.
- While Mars and Jupiter are both bright and visible, Sirius is the brightest star in Earth's night sky.
- Sirius will be highest in the sky at midnight during every turn of the year.
- It is recommended to look for the trio of Sirius, Mars and Jupiter midway between sunset and sunrise -- but don't worry, they are easy to spot!
- To find Jupiter and Mars, EarthSky suggests looking towards the sun's path, or ecliptic.
- It is worth noting that the three bright objects will be visible from any location, provided that the sky is clear.
- The three bright objects will be most visible in late 2024 and early 2025.
- In early February 2025, Sirius will be highest up for the night around 10 p.m. local time. Mars and Jupiter will still be near Sirius in the sky, continuing to make for a bright sight.
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Hackaday
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Image Credit: Hackaday
Catching the View from the Edge of Space
- IRIS-2, a compact imaging package, was released as open-source hardware after traveling to the edge of space aboard Sunrise III.
- Sunrise III, a balloon-borne solar observatory, was launched from northern Sweden and reached 37 km in the stratosphere.
- IRIS-2 captured hella cool video footage using four GoPro cameras and an MPS340 microcontroller.
- The successful flight provided valuable engineering data for future flights.
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Armaghplanet
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Image Credit: Armaghplanet
November Weather Round Up
- November 2024 was drier, warmer, and duller than average. The total precipitation was 60.05 mm which is 82% of the long-term average November precipitation at Armagh. Autumn 2024 was much drier, and sunnier and warmer than average. The highest atmospheric pressure of the month was 1042.1 mbar which is the highest November atmospheric pressure at Armagh since 2001. Autumn 2024 was the driest autumn at Armagh for eight years, and the coolest for four years. The sunniest day was the 26th of November with 7.1 hours of strong sunshine.
- The highest maximum air temperature was 16.9 C on the 6th of November. The lowest maximum air temperature was 1.4 C on the 27th of November. The highest minimum air temperature was 13.1 C on the 7th of November. The lowest minimum air temperature was -4.3 C on the 28th of November. There were 46.5 hours of strong sunshine in November, which was the dullest November at Armagh for nine years.
- Autumn 2024 was much drier than average, the driest autumn at Armagh for eight years. Total autumn precipitation was 161.25 mm and total autumn sunshine was 283.9 hours. Autumn 2024 was also slightly sunnier than average, although the dullest autumn at Armagh for three years, and warmer than average although the coolest autumn at Armagh for four years.
- There were two named storms, namely Storm Bert and Storm Conall. The deep, slow-moving depression called Storm Bert affected large parts of the country during and after the small hours of the 23rd with heavy rainfall and winds at Armagh approaching gale force. The sunniest day was the 26th with 7.1 hours of strong sunshine followed by the 24th with 6.3 hours and the 21st with 5.3 hours.
- Autumn 2024 was much drier, and sunnier and warmer than average. Snow, sleet, and snowflakes, none lying, were observed on four days of a 5-day cold spell lasting from the 18th to the 22nd. Autumn 2024 was slightly sunnier than average, although the dullest autumn at Armagh for three years, and warmer than average although the coolest autumn at Armagh for four years.
- There were 15 nights with ground frost, the coldest three of which were -7.7 C on the 21st of November, -6.9 C on the 22nd of November, and -6.8 C on the 20th of November. A diamond dove, presumably an escapee from an aviary, was seen near the entrance to the Planetarium car park on the afternoon of the 11th. A gull was seen chasing off a heron on the morning of the 20th.
- The month was dominated by relatively high pressure, the monthly average being 1018.7 mbar. This, again by a small margin, was the highest average November atmospheric pressure for 17 years, that is, since November 2007. Armagh Observatory has been recording the weather at Armagh since 1795.
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Earthsky
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Image Credit: Earthsky
Longest days accompany the December solstice
- The longest days of the year come each year around the December solstice, no matter where you live on the globe.
- A day – one rotation of Earth relative to the noonday sun – is about half a minute longer than the average 24 hours, for the entire globe.
- Earth’s perihelion – closest point to the sun – always comes in early January.
- That means our planet is traveling through space a little farther than average each day.
- Half a minute longer doesn’t sound like much, but the difference adds up.
- The year’s earliest sunsets precede the December winter solstice and the year’s latest sunrises come after the December winter solstice.
- In the Southern Hemisphere, the year’s earliest sunrises precede the December summer solstice, and the year’s latest sunsets come after the December summer solstice.
- The fact that we’re closest to the sun in early January also means that Northern Hemisphere winter is the shortest of the four seasons.
- December has the longest days for the entire Earth, as measured from one solar noon to the next.
- Visit Sunrise Sunset Calendars to find out the clock time for solar noon at your locality.
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Digitaltrends
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Image Credit: Digitaltrends
This is the coolest video you’ll see of a SpaceX Dragon capsule heading home
- Astronaut Don Pettit shares a time-lapse video of SpaceX Dragon capsule departing from the International Space Station (ISS) and heading home
- The video shows the Dragon capsule moving away from the ISS at a faster speed, clearly capturing its trajectory
- SpaceX's 31st commercial resupply services mission for NASA concluded with the Dragon spacecraft splashing down off the coast of Florida
- The Dragon capsule carried around 2,700 kilograms of cargo, including scientific experiments and crew supplies, back to Earth
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Medium
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Image Credit: Medium
Earn More with AI: My Journey to a Thriving Business
- Harnessing artificial intelligence can elevate your business by reducing costs and enhancing offerings.
- An all-in-one subscription provides access to 18 advanced AI applications, streamlining workflow and increasing productivity.
- Tools like KlingAI PRO, Lexica AI PRO, Hugging Face PRO, and Elevenlabs AI PRO save time and enhance content creation.
- The platform offers earning potential, with users reporting significant profits and a 30-day money-back guarantee.
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Metro
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Image Credit: Metro
Astronomers catch rare ‘hiccuping’ star in action for the first time ever
- A giant ‘hiccuping’ star in its final stages before exploding has been spotted by a team of international astronomers.
- The phenomenon, known as Pulsational Pair Instability (PPI), occurs in stars 60-150 times the size of the sun.
- Observing PPI can help scientists better understand how large stars operate and their role in shaping the universe.
- The discovery confirms PPI as a real phenomenon and a major step forward in knowledge about massive stars.
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