apod 2023 – Page 11

17Jan

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NASA Astronomy Picture of the Day 17 January 2023: Andromeda Galaxy is simply riveting

[ad_1] NASA’s Astronomy Picture of the Day is a riveting snapshot of the Andromeda Galaxy and the oxygen-emitting blue arcs that surround it. The Andromeda Galaxy is one of the most distant, yet easily visible objects to the eye. Also known as Messier 31, it is a spiral galaxy located approximately 2.5 million light-years away from Earth in the constellation Andromeda. According to NASA, the Andromeda Galaxy is twice the size of our own Milky Way Galaxy, spanning across nearly 260,000 light-years and containing over 1 trillion stars. One of the most striking features of Andromeda is its bright central region, known as the nucleus, which is home to a supermassive black hole. Apart from this, the galaxy also has spiral arms rich in dust and gas.Andromeda is also home to a number of inte...

16Jan

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NASA Astronomy Picture of the Day 16 January 2023: Moon-pockmarked by asteroid strikes

[ad_1] NASA’s Astronomy Picture of the Day is a stunning image of the Moon, showing all of its features in detail. The Moon has long been one of the central pieces of the studies related to Earth. Its presence influences various phenomena on the planet, such as tides. The Moon is believed to have formed about 4.5 billion years ago, shortly after the formation of the solar system. According to one theory , a huge Mars-sized celestial object called Theia collided with Earth around 4.5 billion years ago and the Moon was formed in the aftermath of the collision. It is the only place beyond Earth where humans have set foot so far.NASA's Astronomy Picture of the Day is a high-res image of Earth's Moon, also known as Luna in Latin. Though most images show the Moon as a clear white sphere, in...

13Jan

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NASA Astronomy Picture of the Day 13 January 2023: Young Star Cluster on show

[ad_1] NASA’s Astronomy Picture of the day is a mesmerizing snapshot of a young star cluster in the Small Magellanic Cloud. Group of stars that are close to each other bound together by mutual gravitational attraction are known as star clusters. Stars are formed in star-forming regions called Nebulae. The makeup of a Nebula consists of gases, mainly hydrogen and helium. After formation, many stars form groups from the same Nebula, forming a Star Cluster. According to NASA, Star clusters can contain as few as ten stars or as many as millions of stars.NASA's Astronomy Picture of the Day is a mesmerizing snapshot of a young star cluster embedded in the Small Magellanic Cloud. This star cluster has been given the designation of NGC 346. According to NASA, it is located about 210,000 light...

12Jan

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NASA Astronomy Picture of the Day 12 January 2023: Star Cluster and Flying Ghost Nebula captured

[ad_1] NASA’s Astronomy Picture of the Day is a stunning picture of the star cluster and the Flying Ghost Nebula surrounded by stardust. Stars are the most widely recognized astronomical objects, and represent the most fundamental building blocks of galaxies. They are celestial objects millions of years old floating in space. The older and bigger the star, the brighter it appears. They are formed in star-forming regions called Nebulae. The makeup of a Nebula consists of gases, mainly hydrogen and helium. Gravity within a molecular cloud causes the gas and dust to collapse, forming dense cores. As the cores grow denser and hotter, they begin to fuse hydrogen atoms into helium, which releases energy in the form of light and heat. Once a core reaches a certain temperature and density, a ...

11Jan

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NASA Astronomy Picture of the Day 11 January 2023: Auroras spiralling in the Icelandic sky

[ad_1] NASA’s Astronomy Picture of the Day is a mesmerizing snapshot of Auroras spiralling over the night-sky in Iceland. Scientists have long studied Auroras to better understand the workings of Earth's magnetic field and the solar wind. Auroras, also known as the Northern and Southern Lights, put on a mesmerizing show of lights in the night skies of the polar regions. Although auroras are usually green in colour, they can appear as pink sometimes too. Green auroras are formed when energy particles hit the oxygen atoms at 100 km to 300 km from the surface of the planet. But when particles hit at a height lower than 100 km, it results in the formation of pink auroras.NASA's Astronomy Picture of the Day is a mesmerizing snapshot of Spiral Auroras captured over a rock arch in the northw...

10Jan

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NASA Astronomy Picture of the Day 10 January 2023: Mesmerizing Cone Nebula captured

[ad_1] NASA's Astronomy Picture of the Day provides a mesmerizing view of the star-forming region known as Cone Nebula. The region of a galaxy where stars are forming at an especially high rate is known as a Star Nursery or a Nebula. These star-forming regions are usually found in the spiral arms of galaxies, where there is a high density of molecular clouds. Gravity within a molecular cloud causes the gas and dust to collapse, forming dense cores. As the cores grow denser and hotter, they begin to fuse hydrogen atoms into helium, which releases energy in the form of light and heat. Once a core reaches a certain temperature and density, a new star is born.NASA's Astronomy Picture of the Day is a bewitching picture of a star-forming region known as a Cone Nebula. This Nebula has been g...

9Jan

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NASA Astronomy Picture of the Day 9 January 2023: Comet E3 ZTF, seen by Neanderthals, shot

[ad_1] NASA’s Astronomy Picture of the Day is a stunning image of a comet which is set to pass Earth closely next month. Comets are cosmic snowballs of frozen gases, rock and dust roughly the size of a small town. A comet also orbits the Sun, but unlike an asteroid, it's mostly composed of ice and dust. When a comet gets close to the Sun, its ice and dust content start to vaporize. So, when seen in a telescope, a comet appears fuzzy and has a tail. So, if you're an avid comet watcher, there is exciting news for you. A comet which was last seen by Neanderthals is all set to pass Earth this year.NASA's Astronomy Picture of the Day is a stunning image of the comet C/2022 E3 (ZTF) which is a long-period comet that originated in the Oort cloud, captured by Jose Francisco Hernández, an astr...