NASA’s box-shaped space probe will launch aboard a SpaceX Falcon 9 rocket on Tuesday, November 23 from Vandenberg Space Force Base in California. Less than a year later it will hit its target.
Category: space – Page 531
Using NASA’s Transiting Exoplanets Survey Satellite (TESS), an international team of astronomers has detected a new sub-Neptune exoplanet orbiting an M dwarf star. The newly found extrasolar world, designated TOI-2406 b, is nearly three times larger than the Earth. The discovery is reported in a paper published July 29 on arXiv.org.
TESS is conducting a survey of about 200,000 of the brightest stars near the sun with the aim of finding transiting exoplanets. So far, it has identified over 4,400 candidate exoplanets (TESS Objects of Interest, or TOI), of which 144 have been confirmed so far.
Recently, a team of astronomers led by Robert Wells of the University of Bern in Switzerland confirmed a new TESS planet around the star known as TOI-2406 (or TIC 212957629). TESS observed TOI-2406 in 2018 and 2020, which resulted in the detection of a transit signal in the light curve of this object. The planetary nature of this signal was confirmed by follow-up photometric and spectroscopic observations using various ground-based telescopes.
NASA will launch a mission to crash into an asteroid (on purpose) overnight tonight and you can watch it lift off live online.
The agency’s Double Asteroid Redirection Test (DART) mission will travel millions of miles out into the solar stem to smash into an asteroid, altering its orbit around a larger space rock to practice in the event of a rogue Earth-bound asteroid. The mission is set to lift off from Space Launch Complex-4 at Vandenberg Space Force Base in California early Wednesday, Nov. 24, at 1:20 a.m. EST (10:20 p.m. PST on Nov. 23/0620 GMT).
O,.o! Circa 2018
We can produce very little antimatter and what we make is very difficult to store. These have been huge obstacles that have made antimatter propulsion many trillions of times beyond technological capabilities.
Positron Dynamics and Ryan Weed get around these issues by using isotopes of Krypton or sodium which naturally produce positrons (anti-electrons). They can use tiny amounts of Krypton isotopes to generation 100 billion to many trillions of positrons. They can also breed more of Krypton 79 isotopes by exposing Krypton 78 to neutrons.
Using a NASA NIAC study they have worked out more details and produced renderings of what the systems will look like.
Our galaxy is not alone. Swirling around the Milky Way are several smaller, dwarf galaxies—the biggest of which are the Small and Large Magellanic Clouds, visible in the night sky of the Southern Hemisphere.
During their dance around the Milky Way over billions of years, the Magellanic Clouds’ gravity has ripped from each of them an enormous arc of gas—the Magellanic Stream. The stream helps tell the history of how the Milky Way and its closest galaxies came to be and what their future looks like.
New astronomical models developed by scientists at the University of Wisconsin–Madison and the Space Telescope Science Institute recreate the birth of the Magellanic Stream over the last 3.5 billion years. Using the latest data on the structure of the gas, the researchers discovered that the stream may be five times closer to Earth than previously thought.
New observations reveal the possible origins of a mysterious object called Kamoʻoalewa. It could be the wreckage from an ancient impact on the moon.
Nearly 20 years after the Concorde made its final commercial flight, new efforts are underway to make supersonic passenger travel viable again. Bill Whitaker reports.
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China’s Growth Model Is in Crisis
Posted in space
The Moon awaits. After long decades in which no human being set foot on the lunar surface, we are heading back. And quite soon.
The Moon awaits. After long decades in which no human being set foot on the lunar surface, we are heading back. And quite soon.
As part of the NASA-led Artemis program, astronauts are returning to the lunar environment as soon as 2024, with a view to ultimately establishing a long-term human presence on the Moon – a place we haven’t seen in person since 1972.
To live and work on the Moon, though, astronauts will need power and plenty of it, and there’s no power grid on the Moon.
The new finding raises the chances of the planet’s past habitability.
NASA’s Mars InSight Lander found new evidence of lava flows on the Red Planet, increasing its chances of past habitability.