Out of thousands of possible ways to assume how life on earth began, one of the possibilities remains that the life was created by an advanced alien civilization. As far as we have understood till now, the Universe was created about 13.7 billion years ago. Billions of stars and planets must have existed, way before the creation of the earth. Our earth was formed just 4.5 billion years ago.

About 15 million years after the big bang, the entire universe had cooled to the point where the electromagnetic radiation left over from its hot beginning was at about room temperature. In a 2013 paper, I labeled this phase as the “habitable epoch of the early universe.” If we had lived at that time, we wouldn’t have needed the sun to keep us warm; that cosmic radiation background would have sufficed.

In the nearly galaxy M87, more than 50 million light years from Earth, a supermassive black hole feeds on vast clouds of gas and dust. Jets, more than 5,000 light years long, erupt from this enigmatic body six billion times more massive than the Sun. In 2019, the first detailed images ever recorded of the region around a black hole were released, showing a bright ring-like structure surrounding a dark void.

The strange signals known as “fast radio bursts” (FRBs) have long mystified the astronomy community. The sudden, strong radio pulses, often emanating from distant galaxies, appear at regularly timed intervals, from every few of milliseconds to weeks — and we still aren’t entirely sure what they are or why they exist.

Data from NASA's Chandra X-ray Observatory suggests a supernova remnant known as Sagittarius A East (or Sgr A East) is the first known example of an unusual type of white dwarf stellar explosion called a Type Iax supernova in our own Milky Way galaxy.

The first black hole that humanity ever discovered is much more massive than previously thought, according to new research. The galactic X-ray source, later named Cygnus X-1, was discovered in 1965, when a pair of Geiger counters were carried on board a sub-orbital rocket launched from New Mexico.

For planetary scientists, it was the boldest claim in a generation: an unseen extra planet, as much as 10 times the mass of Earth, lurking on the Solar System’s frontier, beyond Neptune. But the claim looks increasingly shaky, after a team of astronomers reported last week that the orbits of a handful of distant lumps of rock are not bunched together by the gravity of “Planet Nine,” as its proponents believe, but only seem clustered because that’s where telescopes happened to be looking.

Scientists found a galaxy dating back to the early years of the universe, but appearing to be billions of years too old for that.

The path to dark matter and other fundamental enigmas may be through a warped extra dimension, according to a new study that proposes a new theory of the universe.

Astronomers have developed a new technique to search for exoplanets—by looking for their crushed up bones in the atmospheres of white dwarfs. And it's working. The search for planets outside the solar system, known as exoplanets, has one significant limitation: We can only find exoplanets that exist right now. But our universe has been hanging around for over 13 billion years, and many generations of planetary systems have come and gone in that vast expanse of cosmic time.

Albert Einstein’s theory of general relativity profoundly changed our thinking about fundamental concepts in physics, such as space and time. But it also left us with some deep mysteries. One was black holes, which were only unequivocally detected over the past few years. Another was “wormholes” – bridges connecting different points in spacetime, in theory providing shortcuts for space travellers.

Larry Silverberg and his research partner Jeffrey Eischen From North Carolina State University have proposed a surprising new model of physics that could entirely rewrite the way we have studied physics so far.

Have you ever wonder what is the universe made of? If you want to find the answer in syllabus books then it says the universe is made of energy and matter. If you ask the same question to a scientist then he will say it's dark stuff (Dark energy & Dark matter) then if you ask him what is dark matter? then his reply is probably is it's a riddle for science to solve. We are going to tell you about the mystery of dark matter and how scientists of LHC (Large Hadron Collider) gonna solve this mystery.

Astronomers are studying black holes that could have formed in the early universe, before stars and galaxies were born. Such primordial black holes (PBHs) could account for all or part of dark matter, be responsible for some of the observed gravitational waves signals, and seed supermassive black holes found in the center of our Galaxy and other galaxies

On December 3, humanity suddenly had information at its fingertips that people have wanted for, well, forever: the precise distances to the stars. “You type in the name of a star or its position, and in less than a second you will have the answer,” Barry Madore, a cosmologist at the University of Chicago and Carnegie Observatories, said on a Zoom call last week. “I mean …” He trailed off.

Visiting comets can serve as markers in historical timelines. A team of Japanese researchers used one to confirm the death of an Empress.

Many good stories begin with this magical phrase, but have you ever thought that "what is the story of time?" Does time exist? We always say time can be spent, time is money, we waste time, we are trying to save time, but what do we really know about the time? Is time an illusion? According to physicist Brian Greene, "all the time exist at once in spacetime"

Grand-scale Newtonian physics gravity simulator.

Astronomers have discovered a cold brown dwarf – otherwise known as a “super planet” – for the first time using a radio telescope. Brown dwarfs are vast, sized between 15 and 75 times the mass of Jupiter, and have gaseous atmospheres similar to some of the planets in our solar system. They are also often known as “failed stars” because of the way that they shine.

Astrophysicists consider that around 40% of the ordinary matter that makes up stars, planets and galaxies remains undetected, concealed in the form of a hot gas in the complexe cosmic web. Today, scientists at the Institut d’Astrophysique Spatiale (CNRS/Université Paris-Saclay) may have detected, for the first time, this hidden matter through an innovative statistical analysis of 20-year-old data. Their findings are published on November 6, 2020 in Astronomy & Astrophysics.