Captured by the James Webb, the Little Red Dots indicate galaxies we’ve never seen before, and what’s inside them is unclear.
Category: space – Page 53
The team successfully tracked the orbit of the close companion and measured changes in the size of the Cepheid as it pulsated. The orbital motion showed that Polaris has a mass five times larger than that of the Sun. The images of Polaris showed that it has a diameter 46 times the size of the Sun.
The biggest surprise was the appearance of Polaris in close-up images. The CHARA observations provided the first glimpse of what the surface of a Cepheid variable looks like.
CHARA Array false-color image of Polaris from April 2021 that reveals large bright and dark spots on the surface. Polaris appears about 600,000 times smaller than the Full Moon in the sky.
“Traditional measures of chirality have struggled to identify the concentration of right-and left-handed molecules in samples containing almost equal amounts of both,” says physicist Nicola Mayer, from the Max Born Institute.
“With our new method, a tiny excess in the concentration of either mirror twin can be detected, possibly enough to make a life-changing difference.”
We’re not sure how chirality first emerged, but it may have originated from deep space, before going on to play a profound role in so many different aspects of life on Earth. Having instruments that can better detect chiral molecules would be a major step forward.
What if everything we know about time is merely an illusion? Could find a way out of it, by breaking the construct of how the universe progresses? And so, would it be possible to break the natural flow of time?
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Visualization of the Gödel universe.
P-adic numbers in de Sitter Space
Posted in space
Read about the importance of International Observe the Moon Night and how you can celebrate it on September 14, 2024!
Beginning in 2010, NASA began International Observe the Moon Night based on two events occurring simultaneously in 2009 during the International Year of Astronomy celebration: “We’re at the Moon!”, which was sponsored by the Lunar Reconnaissance Orbiter (LRO) and the Lunar Crater Observation and Sensing Satellite (LCROSS) teams, and “National Observe the Moon Night”, which was hosted in the United States.
This year’s International Observe the Moon Night is occurring on September 14 with the goal of sharing the incredible science and wonder of the Moon, including its observational and scientific history, why it’s so important to study, and how we’re studying it. For example, evidence has suggested that ancient humans as far back as 20,000 years ago used the Moon as a timekeeping device due to the changing phases of the Moon over the course of a month. Additionally, when observing the Moon with either the naked eye or a telescope, the Moon’s surface exhibits both bright and dark colors, which are the Moon’s lava plains and highlands, respectively.
Regarding its scientific history, the Moon has been studied by astronomers around the world for hundreds of years, with one of the first astronomers to observe the Moon through a telescope and document their findings being Galileo Galilei, finding the Moon’s surface was imperfect and not smooth as had been previously hypothesized. Regarding robotic exploration, the Moon has been explored in-depth beginning with the Soviet Union intentionally crashing the Luna 2 space probe onto the lunar surface on September 14, 1959. This Space Race between the United States and Soviet Union culminated with the United States landing the first man on the Moon in 1969 with Apollo 11.
September’s full Harvest Moon will drift into Earth’s shadow for a partial eclipse on Sept. 17. It is also the second of four consecutive supermoons this year, making our natural satellite look bigger and brighter than usual.
A star’s flyby likely altered the orbits of trans-Neptunian objects beyond Neptune that changes how we view the solar system’s boundaries.
Well, that’s it, actually. The sentence has been signed, the money has been allocated to the executioners. For now, one billion dollars, and then we’ll see how it goes. Since NASA has decided to deorbit the ISS itself, the cost may increase considerably. But this will not surprise anyone, this is the norm in the USA.
Moreover, if political motives are involved, they cost more. If Roscosmos carried out such an operation, most likely, it would cost less, if only because it has everything for it. And NASA has nothing.
A new superhighway network has been identified by researchers, which enables significantly faster travel through the Solar System than was previously feasible. This network can facilitate the transportation of comets and asteroids from Jupiter to Neptune in under a decade and up to 100 astronomical units within a century.
The technology could facilitate swift transportation of spacecraft to the remote regions of our solar system while also aiding in the detection and understanding of nearby objects that pose a threat of colliding with our planet.
In a paper published on November 25, 2020, in the journal Science Advances, researchers have identified a series of interconnected arches forming space manifolds that extend from the asteroid belt to Uranus and beyond, which create a new “celestial autobahn.” These structures operate on a much shorter time scale of several decades, as opposed to the hundreds of thousands or millions of years characteristic of Solar System dynamics.