apod 2023

NASA Astronomy Picture of the Day 20 February 2023: Our universe is illuminated by trillions of stars in the sky. These bright objects are formed in a giant cloud of dust and gas in space, known as a Nebula. After formation, many stars…

Although asteroids rarely come close enough that they pose a potential danger of impacting Earth, this recent asteroid certainly came close. Just recently, a 3.2 feet wide asteroid turned into a fireball over the European skies where it…

Most galaxies exist in groups or clusters with dozens or hundreds of members, and these cluster galaxies are all in constant motion, pulled and twisted by their neighbour's gravity. One such galaxy cluster is the Hydra Cluster of galaxies…

Auroras are one of the most visually stunning sky phenomena visible on Earth with naked eyes. The solar particles released during interaction of a solar storm with Earth's magnetic field further interact with the various gases present in…

Valentine's Day is upon us and it seems even celestial objects are celebrating the day of love. One such celestial formation is the Heart and Soul nebulae. As the name suggests, the Heart and Soul nebulae consist of an emission nebula…

Although comets often make close flybys, the Comet C/2022 E3 (ZTF) is particularly special as it has a period of around 50,000 years. That means the last time it flew past Earth closely, it was witnessed by Neanderthals during the Upper…

The Green Comet ZTF passed Earth at its closest distance on February 1 and it was seen by astronomers and sky-watchers alike all over the world. Comets are of interest to scientists because they are remnants of the early Solar System, and…

Earth has a cycle wherein water originates from and returns to the ground. In between, it goes through many forms. Although water may evaporate from the ground or change its course to other areas, water vapor is always present in the air…

A nebula is a giant cloud of dust and gas in space, according to NASA. These celestial objects exist in the space between stars, known as the Interstellar space. Some nebulae originate from the gas and dust thrown out by the explosion of…

Comets are frozen leftovers from the formation of the solar system composed of dust, rock, and ices. They range from a few miles to tens of miles wide, but as they orbit closer to the Sun, they heat up and spew gases and dust into a…