General relativity is classical in nature while quantum mechanics upholds the idea of quantization and interference at the subatomic scale. Quantum (field) theory successfully accommodates all the interactions of nature in its framework but gravity (this framework is called the Standard Model of Particle Physics). However, general relativity is the only available tool to study all the manifestations of the gravitational field.
Our galaxy, the Milky Way, is constantly hurtling towards our nearest spiral neighbor, Andromeda, which will one day swallow our entire existence. As a matter of fact, the Milky Way itself has been incubated by eating several tenuous star systems and galaxies for the past millions of years. There is no doubt, but fear, to say that our galaxy is on its way to be gobbled up by Andromeda, the order has been placed and will reach its destination any time after 4.5 billion years.
The discovery of two ghostly galaxies DF2 and DF4, devoid of dark matter, has sparked a cosmic debate within the astronomical world. While the answer is still in the air, this cosmic-stir ending in an affirmation of the question can invalidate our decades-long understanding of how galaxies form and evolve.
Humans have been scouring space in a quest to understand the prospects of human survival and the evidence of extraterrestrial life on other planets for a long time. Ground-breaking space missions like Voyager 1, Kepler, and Cassini-Huygens have revolutionized the way astronomers look at our universe and have opened new fields in planetary science exploration.
Mankind has always been captivated by the stars and everything that the sky holds. But the current age of space exploration was ushered in by the sustained action of two countries vying to land the first person on the Moon: The United States of America (USA) and the former Soviet Union (USSR). Today, more than […]
Water is an absolute necessity of life. This is why when astronomers are looking for life in the universe, they are actually on the lookout for water. Astronomers have discovered such a planet called K2-18b, which is at the perfect distance from its star K2-18 that allows water to exist in liquid state therein. This […]