I. What is a Vacuum Engine? A vacuum engine is a type of propulsion system used in rocketry to generate thrust in the vacuum of space. Unlike traditional rocket engines that rely on combustion of fuel and oxidizer to produce thrust, vacuum engines operate by expelling a high-velocity stream of gas or plasma to propel … Read more
I. What is a Black Hole? A black hole is a region in space where the gravitational pull is so strong that nothing, not even light, can escape from it. This phenomenon occurs when a massive star collapses in on itself, creating a singularity with infinite density and zero volume. The gravitational force of a … Read more
What is an Ion Thruster? An ion thruster is a type of propulsion system used in spacecraft to generate thrust by accelerating ions. Unlike traditional chemical rockets that rely on the combustion of fuel, ion thrusters use electricity to ionize propellant and create a plasma that is expelled at high velocities to propel the spacecraft … Read more
I. What are Seyfert Galaxies? Seyfert Galaxies are a type of spiral galaxy that is characterized by extremely bright nuclei. They were first identified by astronomer Carl Seyfert in the 1940s, hence the name. These galaxies are known for their active galactic nuclei (AGN), which emit large amounts of energy across the electromagnetic spectrum, from … Read more
I. What is a Space Propellant Depot? A Space Propellant Depot is a storage facility located in space that is used to store and distribute propellants for spacecraft. These depots are essential for long-duration space missions, as they allow spacecraft to refuel and continue their journey without having to return to Earth for more fuel. … Read more
I. What is Space Manufacturing? Space manufacturing refers to the process of producing goods and materials in the unique environment of outer space. This can include manufacturing processes that take place on spacecraft, space stations, or other extraterrestrial locations. Space manufacturing utilizes the microgravity, vacuum, and extreme temperatures of space to create products that may … Read more
I. What is a Subnebula? In astronomy, a subnebula is a region within a larger nebula that exhibits distinct characteristics or properties. Subnebulae are often smaller in size compared to the overall nebula they are a part of, and they can have unique features that set them apart from the surrounding gas and dust clouds. … Read more
I. What is eROSITA? eROSITA, which stands for extended Roentgen Survey with an Imaging Telescope Array, is a space-based X-ray telescope designed to study the universe in high-energy X-ray wavelengths. It is a key instrument on the Russian-German “Spectrum-Roentgen-Gamma” (SRG) satellite, which was launched in July 2019. eROSITA is a collaboration between the Max Planck … Read more
I. What is a Fast Radio Burst (FRB)? Fast Radio Bursts (FRBs) are intense bursts of radio waves that last for just a few milliseconds. They were first discovered in 2007 by Duncan Lorimer and his student David Narkevic while analyzing archival data from the Parkes radio telescope in Australia. Since then, astronomers have detected … Read more
What is Nanshan Radio Telescope? The Nanshan Radio Telescope, also known as the Nanshan Radio Observatory, is a large radio telescope located in Xinjiang, China. It is one of the largest fully steerable radio telescopes in the world, with a diameter of 25 meters. The telescope is operated by the National Astronomical Observatories of China … Read more