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Showing posts from July, 2025

Tabby's Star: An Alien Megastructure Like Star.

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Tabby's Star.  The Tabby's Star: An Alien Megastructure Like Star. 👽 The Tabby's star is a star about 1,470 light-years away from us. It is located in the constellation Cygnus . It looks like a star bigger than the Sun. But when NASA's Kepler Telescope observed it more, it shocked the astronomers. The shocking thing was that, when a planet passes by a star, so the star dims, but the Tabby's star dimmed up but in a weird way. It dimmed up to 22%, which was massive. The other thing was that it doesn't dim like a natural star, but it dimmed like many things are around it like a Dyson sphere . The Dyson sphere is aa alien megastructure . Scientists are still observing it, and new studies also suggest that it these might be dust particles smaller than smoke particles instead of a Dyson sphere. But there is still a question, that from where these dust particles come? The even more puzzling and weird things about the stars are that the star is dimming overall, like ...

The Multiverse Theory.

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The Multiverse: Are There More Universes? Have you ever thought that there might be multiverses too or there might be other dimensions that can be like us? Well, this is a thought that everyone always thinks about. And some scientists also proposed this idea. In this post all about ideas and theories about the multiverse are mentioned. What Is Multiverse? Multiverse is a theory that suggest that there might be many universes, dimensions or worlds in addition to ours. This theory sounds like sci-fiction, but it may be real too. Many also suggests that there might be our different or alike versions too. There might be laws and physics like us or something different. Why Are Scientists Taking This Seriously? Scientists took the multiverse theory seriously because many laws and theories of physics predicted the multiverse naturally when they were not trying to predict it. Many ideas and theories were also suggested related to the Multiverse which gave scientific reasons for the existence o...

Pulsar: The Cosmic Lighthouse.

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Pulsars: The Lighthouse of the Cosmos. Image Credit: NASA. Pulsar. What Is a Pulsar? Pulsar is a type of neutron star . It is a dead star which don't fades but starts spinning very rapidly and shoots out beams of light from its magnetic poles like a lighthouse. It is 20 km wide and has more mass than the Sun.  How Does a Pulsar Work? Pulsar spins like a ballerina. It is fast in spinning because it is a dead star which's core collapsed, this collapse makes that star spin faster and have stronger magnetic field than our Earth's. This star shoots out radio waves , gamma rays or X-rays from its poles, in narrow beams. These beams are not always pointing towards the Earth, we just see a pulse of the beam and that's why it is called a pulsar.  How Were the Pulsars Discovered?  In 1967, Jocelyn Bell Burnell was analyzing data from a telescope designed to study quasars . But she noticed something odd, which was that every day, in the same part of the sky, her chart showed...

The WOW! Signal: A Mysterious Message from the Deep Space.

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The WOW! Signal. The Wow! Signal – A Mysterious Message from the Cosmos: The Big Ear Radio Telescope . In the summer of 1977, something strange happened in the vast silence of space. A signal now famously called the  " Wow! Signal ,"  was picked up by the Big Ear Radio Telescope in Ohio . It was so unusual and powerful that the astronomer on duty, Jerry R. Ehman , circled the signal on a printout and wrote "Wow!" next to it and just like that, the name stuck. But what exactly was the Wow! Signal, and why does it still baffle scientists and space lovers today? What was the Wow! Signal? The signal was detected on August 15, 1977 . It lasted for 72 seconds and came from the direction of the constellation Sagittarius , near a group of stars called Chi Sagittarii . It had all the characteristics scientists were looking for in a potential alien communication : a strong, narrowband radio signal, right around the 1420 MHz frequency — the natural emission frequency of hydro...

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Quasars: The Horrifying Monsters of Heat.

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Quasars: The Horrifying Monsters of Heat. Image Credit: NASA. Quasar. What Are Quasars? Quasar is the short form for '' quasi-stellar radio sources'' which are the brightest and most energetic objects in the Universe which are powered by supermassive black holes at the center of galaxies. It is an active galactic nucleus (AGN), where supermassive black holes with millions and billions of masses are rapidly accreting matter and releasing intense radiation across the electromagnetic spectrum which are radio waves, gamma rays, UV, X-rays and visible light. Characteristics of a Quasar: Brightness: Are They Bright or Dark?  Image Credit: NASA. Milky Way Galaxy. Quasars can outshine an entire galaxy, and they are 1000 times brighter than the Milky Way galaxy.  Power Source: What Is Giving It This Much Power? Image Credit: NASA. Supermassive Blackhole. The accretion of gas, dust and matter by a supermassive black hole is the source of a quasar's power. Emission of Energy: ...

What Are Magnetars? The Most Powerful and Mysterious Stars in the Universe.

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What Are Magnetars? The Most Powerful and Mysterious Stars in the Universe. Image Credit: NASA. Magnetar. What Is a Magnetar? A magnetar is a rare and extremely magnetic type of neutron star which is the incredibly dense remnant left behind after the explosion of a star in supernova. Magnetars are known for their extremely strong magnetic fields. In simple terms, a magnetar is a dead star with the strongest magnetic field. Formation: How Are Magnetars Born? Magnetars are born from supernova explosions of massive stars, just like the neutron stars. But what makes them different from a neutron star is that they have a strong magnetic field and fast spin. Image Credit: NASA. Supernova. Here Is How It Happens: A massive star dies in an explosion called supernova. Its remnants forms into a neutron star with extremely strong magnetic field and fast spin. Through this, a magnetar is born. Magnetic Power:  The Strongest: A magnetar’s magnetic field is 10¹⁴ to 10¹⁵ gauss, Earth's is 0.5 ga...

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What Is Dark Energy? The mysterious Force Tearing the Universe Apart.

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What Is Dark Energy? A Mysterious Force Tearing the Universe Apart. Image Credit: NASA. Imagine everything you’ve ever seen, the stars, the Sun, the planets, galaxies, all of it only accounts for less than 5% of the Universe. Then what is the else made of? It is dark energy. But what is dark energy? And what does it do? About 27% is dark matter, which holds galaxies together. But the rest, the dominant 68%, is something strange, completely invisible and even more powerful than gravity. It’s called Dark Energy. When And  How Was Dark Energy Discovered? After the Big Bang, around 13.8 billion years ago, the Universe started expanding. This expansion was slowing down and scientists thought that this was slowed down because of gravity which was natural. Then, in 1998, two independent teams of astrophysicists, The Supernova Cosmology Project and The High-Z Supernova Search Team made a shocking discovery. They observed distant Type Ia supernovae which is a massive exploding star used as ...