These galaxies cannot form new stars and astronomers don’t know why
Some of the oldest and most massive galaxies in the universe have mysteriously lost the ability to produce new stars…
Astrophysics
Crab nebula in different band
1000 years ago, a gigantic explosion lit up the Earth’s sky. It was in the constellation of Taurus a star…
Highest rotation ever seen in the Universe complicates the Big Bang theory
Everything in the Universe turns. By mapping the movement of galaxies onto huge filaments that connect the cosmic web, astronomers…
Inflationary Universe Theory: Origin & Expansion of Cosmos
The inflationary theory suggests that the universe sprang into existence from absolute nothingness around 15 billion years ago, starting from…
Scientists determine galaxy age using Einstein’s huge ring
Einstein’s rings are curious objects. More than that, they defy common sense. To understand them, it is necessary to have…
Stellar Winds, Magnetic Activity, and Evaporating Exoplanet Atmospheres
Most stars including the Sun generate magnetic activity that drives a fast-moving, ionized wind and also produces X-ray and ultraviolet…
What is the edge of the Solar System and where is it?
4.6 billion years ago, the Solar System was born from the protoplanetary disk that orbited our Sun, when it was…
What is an Active galactic nucleus?
Active galactic nucleus (AGN) is a compact region at the center of a galaxy that has a much-higher-than-normal luminosity over…
A New Understanding of Galaxy Evolution with NASA’s Roman Space Telescope
When NASA’s Nancy Grace Roman Space Telescope launches in the mid-2020s, it will revolutionize astronomy by providing a panoramic field…
The Venus unknown strangeness
In the Solar System there is a very special planet, where the day lasts more than a whole year! In…