How were the first Galaxies formed๐ซ?
โจ13.8 billion years ago, after the Big Bang gas and dust particles spread all over the Universe. Two of the most abundant constituents of our Universe at that time were Hydrogen and Dark Matter. Researchers haven't found Dark Matter yet, but assuming that it had a great role for building our Universe. Dark Matter keeps different objects together due to it's gravitational effect. Dust particles after being gravitationally collapsed and by the process of Nuclear Fusion formed stars. Due to the gravitational effect of Dark Matter, stars formed were attracted to each other. Those stars who grew old, after Supernova explotion formed Black holes. Dust and gas around the Black hole present started revolving it and formed a disk. The formations took place were making a scenario known as Bottom up scenario, those scenarios we know today for the formation of Galaxiesโจ
#Galaxy
๐ @AstroMechanics
โจ13.8 billion years ago, after the Big Bang gas and dust particles spread all over the Universe. Two of the most abundant constituents of our Universe at that time were Hydrogen and Dark Matter. Researchers haven't found Dark Matter yet, but assuming that it had a great role for building our Universe. Dark Matter keeps different objects together due to it's gravitational effect. Dust particles after being gravitationally collapsed and by the process of Nuclear Fusion formed stars. Due to the gravitational effect of Dark Matter, stars formed were attracted to each other. Those stars who grew old, after Supernova explotion formed Black holes. Dust and gas around the Black hole present started revolving it and formed a disk. The formations took place were making a scenario known as Bottom up scenario, those scenarios we know today for the formation of Galaxiesโจ
#Galaxy
๐ @AstroMechanics
๐ฅDid you know?
โจIn 2006, astronomers spotted a huge cloud of fiery gas which is 3 million light-years in diameter and hotter than the center of our Sun. The gas ball contains more matter than a 1000 billion Sunsโจ
#Fact
๐ @AstroMechanics
โจIn 2006, astronomers spotted a huge cloud of fiery gas which is 3 million light-years in diameter and hotter than the center of our Sun. The gas ball contains more matter than a 1000 billion Sunsโจ
#Fact
๐ @AstroMechanics
โจLet The Old Year End And The New Year Begin With The Warmest Of Aspirations!!
~HAPPY NEW YEAR 2022โจ๐ฎ!!
#HappyNewYear
๐ @AstroMechanics
~HAPPY NEW YEAR 2022โจ๐ฎ!!
#HappyNewYear
๐ @AstroMechanics
๐Astronomy Calendar Of Celestial Events For Calendar Year 2022
๐January 2 - New Moon. The Moon will located on the same side of the Earth as the Sun and will not be visible in the night sky. This phase occurs at 18:35 UTC. This is the best time of the month to observe faint objects such as galaxies and star clusters because there is no moonlight to interfere.
๐January 3, 4 - Quadrantids Meteor Shower. The Quadrantids is an above average shower, with up to 40 meteors per hour at its peak. It is thought to be produced by dust grains left behind by an extinct comet known as 2003 EH1, which was discovered in 2003.
๐January 7 - Mercury at Greatest Eastern Elongation. The planet Mercury reaches greatest eastern elongation of 19.2 degrees from the Sun. This is the best time to view Mercury since it will be at its highest point above the horizon in the evening sky. Look for the planet low in the western sky just after sunset.
๐January 17 - Full Moon. The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated. This phase occurs at 23:51 UTC. This full moon was known by early Native American tribes as the Wolf Moon because this was the time of year when hungry wolf packs howled outside their camps. This moon has also been know as the Old Moon and the Moon After Yule.
๐February 1 - New Moon. The Moon will located on the same side of the Earth as the Sun and will not be visible in the night sky. This phase occurs at 05:48 UTC. This is the best time of the month to observe faint objects such as galaxies and star clusters because there is no moonlight to interfere.
๐February 16 - Full Moon. The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated. This phase occurs at 16:59 UTC. This full moon was known by early Native American tribes as the Snow Moon because the heaviest snows usually fell during this time of the year.
๐February 16 - Mercury at Greatest Western Elongation. The planet Mercury reaches greatest western elongation of 26.3 degrees from the Sun. This is the best time to view Mercury since it will be at its highest point above the horizon in the morning sky. Look for the planet low in the eastern sky just before sunrise
#AstronomicalEvents
๐ @AstroMechanics
๐January 2 - New Moon. The Moon will located on the same side of the Earth as the Sun and will not be visible in the night sky. This phase occurs at 18:35 UTC. This is the best time of the month to observe faint objects such as galaxies and star clusters because there is no moonlight to interfere.
๐January 3, 4 - Quadrantids Meteor Shower. The Quadrantids is an above average shower, with up to 40 meteors per hour at its peak. It is thought to be produced by dust grains left behind by an extinct comet known as 2003 EH1, which was discovered in 2003.
๐January 7 - Mercury at Greatest Eastern Elongation. The planet Mercury reaches greatest eastern elongation of 19.2 degrees from the Sun. This is the best time to view Mercury since it will be at its highest point above the horizon in the evening sky. Look for the planet low in the western sky just after sunset.
๐January 17 - Full Moon. The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated. This phase occurs at 23:51 UTC. This full moon was known by early Native American tribes as the Wolf Moon because this was the time of year when hungry wolf packs howled outside their camps. This moon has also been know as the Old Moon and the Moon After Yule.
๐February 1 - New Moon. The Moon will located on the same side of the Earth as the Sun and will not be visible in the night sky. This phase occurs at 05:48 UTC. This is the best time of the month to observe faint objects such as galaxies and star clusters because there is no moonlight to interfere.
๐February 16 - Full Moon. The Moon will be located on the opposite side of the Earth as the Sun and its face will be will be fully illuminated. This phase occurs at 16:59 UTC. This full moon was known by early Native American tribes as the Snow Moon because the heaviest snows usually fell during this time of the year.
๐February 16 - Mercury at Greatest Western Elongation. The planet Mercury reaches greatest western elongation of 26.3 degrees from the Sun. This is the best time to view Mercury since it will be at its highest point above the horizon in the morning sky. Look for the planet low in the eastern sky just before sunrise
#AstronomicalEvents
๐ @AstroMechanics
๐1
Why is the Moon so dusty?
โจOn the Moon, the history of constant micrometeorite bombardment has blasted away at the rocky surface creating a layer of powdery lunar soil or regolith. For the Apollo astronauts and their equipment, the pervasive, fine, gritty dust was definitely a problem. On the lunar surface in December 1972, Apollo 17 astronauts Harrison Schmitt and Eugene Cernan needed to repair one of their rover's fenders in an effort to keep the rooster tails of dust away from themselves and their gear. This picture reveals the wheel and fender of their dust covered roverโจ
#Moon
๐ @AstroMechanics
โจOn the Moon, the history of constant micrometeorite bombardment has blasted away at the rocky surface creating a layer of powdery lunar soil or regolith. For the Apollo astronauts and their equipment, the pervasive, fine, gritty dust was definitely a problem. On the lunar surface in December 1972, Apollo 17 astronauts Harrison Schmitt and Eugene Cernan needed to repair one of their rover's fenders in an effort to keep the rooster tails of dust away from themselves and their gear. This picture reveals the wheel and fender of their dust covered roverโจ
#Moon
๐ @AstroMechanics
๐1
Westerlund 1๐
โจWesterlund 1 is a compact young super star cluster in the Milky Way galaxy, about 2.6 kpc (8480 ly) away from Earth.
It is one of the most massive young star clusters in the Milky Way, and was discovered by Bengt westerlund in 1961 but remained largely unstudied for many years due to high interstellar absorption in its direction. In the future, it will probably evolve into a globular clusterโจ
#Westerlund1
๐ @AstroMechanics
โจWesterlund 1 is a compact young super star cluster in the Milky Way galaxy, about 2.6 kpc (8480 ly) away from Earth.
It is one of the most massive young star clusters in the Milky Way, and was discovered by Bengt westerlund in 1961 but remained largely unstudied for many years due to high interstellar absorption in its direction. In the future, it will probably evolve into a globular clusterโจ
#Westerlund1
๐ @AstroMechanics
Can we see the flag on the Moon with a telescope๐?
โจYes, the flag is still on the moon, but you can't see it using a telescope. I found some statistics on the size of lunar equipment in a Press Kit for the Apollo 16 mission. The flag is 125 cm (4 feet) long, and you would need an optical wavelength telescope around 200 meters (~650 feet) in diameter to see it. The largest optical wavelength telescope that we have now is the Keck Telescope in Hawaii which is 10 meters in diameter. The Hubble Space Telescope is only 2.4 meters in diameter - much too smallโจ!
#Space
๐ @AstroMechanics
โจYes, the flag is still on the moon, but you can't see it using a telescope. I found some statistics on the size of lunar equipment in a Press Kit for the Apollo 16 mission. The flag is 125 cm (4 feet) long, and you would need an optical wavelength telescope around 200 meters (~650 feet) in diameter to see it. The largest optical wavelength telescope that we have now is the Keck Telescope in Hawaii which is 10 meters in diameter. The Hubble Space Telescope is only 2.4 meters in diameter - much too smallโจ!
#Space
๐ @AstroMechanics
๐ฅDid you know?
โจThe DNA sequence of Stephen Hawking is stored on a hard disk, called the immortality Drive, onboard the ISS. He was among a select group of human to have their DNA immortalizedโจ
#Fact
๐ @AstroMechanics
โจThe DNA sequence of Stephen Hawking is stored on a hard disk, called the immortality Drive, onboard the ISS. He was among a select group of human to have their DNA immortalizedโจ
#Fact
๐ @AstroMechanics
Happy Birthday Stephen Hawking๐ฅณ!
#OnThisDay in 1942 British cosmologist Stephen William Hawking was born.
๐ฎStephen Hawking was regarded as one of the most brilliant theoretical physicists in history. His work on the origins and structure of the universe, from the Big Bang to black holes, revolutionized the field, while his best-selling books have appealed to readers who may not have Hawking's scientific background.
#AmazingDay
๐ @AstroMechanics
#OnThisDay in 1942 British cosmologist Stephen William Hawking was born.
๐ฎStephen Hawking was regarded as one of the most brilliant theoretical physicists in history. His work on the origins and structure of the universe, from the Big Bang to black holes, revolutionized the field, while his best-selling books have appealed to readers who may not have Hawking's scientific background.
#AmazingDay
๐ @AstroMechanics
๐2
โจActive galaxy NGC 1275 lies at the heart of the Perseus Galaxy Cluster, it has huge filaments of gas that extend out from the core. They look like the tentacles of an immense galactic octopus and are 20,000 light years long, and just 200 light years wide. They are held in place by powerful magnetic fields from the massive central black holeโจ
#BlackHole
๐ @AstroMechanics
#BlackHole
๐ @AstroMechanics
โโโจWhat would happen if a nuclear bomb was detonated in space?
๐ฅWhen a nuclear bomb explodes on Earth, the huge release of radiation triggers the rapid expansion of air around it, causing the intense blast wave that wreaks so much destruction.
In the vacuum of space, the lack of air means the principal destructive effects come not from the blast, but instead from the particles and radiation pouring out of the bomb, which dump their energy as heat on striking the targetโจ
#Fact
๐ @AstroMechanics
๐ฅWhen a nuclear bomb explodes on Earth, the huge release of radiation triggers the rapid expansion of air around it, causing the intense blast wave that wreaks so much destruction.
In the vacuum of space, the lack of air means the principal destructive effects come not from the blast, but instead from the particles and radiation pouring out of the bomb, which dump their energy as heat on striking the targetโจ
#Fact
๐ @AstroMechanics
Where does space actually start?
โจThe Kรกrmรกn line, an altitude of 100 km (62 mi) above sea level, is conventionally used as the start of outer space in space treaties and for aerospace records keeping. The framework for international space law was established by the Outer Space Treaty, which entered into force on 10 October 1967โจ
#Space
๐ @AstroMechanics
โจThe Kรกrmรกn line, an altitude of 100 km (62 mi) above sea level, is conventionally used as the start of outer space in space treaties and for aerospace records keeping. The framework for international space law was established by the Outer Space Treaty, which entered into force on 10 October 1967โจ
#Space
๐ @AstroMechanics
๐ฅDid you know?
โจJupiter's Great Red spot is so loud, it's acoustic sound waves heat up the surrounding atmosphere to almost 2400 degrees Fahrenheitโจ
#Fact
๐ @AstroMechanics
โจJupiter's Great Red spot is so loud, it's acoustic sound waves heat up the surrounding atmosphere to almost 2400 degrees Fahrenheitโจ
#Fact
๐ @AstroMechanics
โจDefinition: Radio astronomy is a subfield of astronomy that studies celestial objects at radio frequencies. Subsequent observations have known a variety of various sources of radio waves. These embrace stars and galaxies, likewise as entirely new categories of objects like radio galaxies, quasars, and pulsarsโจ
#Radioastronomy
๐ @AstroMechanics
#Radioastronomy
๐ @AstroMechanics
Quantum Teleportation๐ฅ
โจQuantum Teleportation is a process in which quantum information can be transmitted from one location to another with the help of a shared quantum entanglement between the sending and receiving locations.
โข Quantum teleportation is not a form of transportation, but of communication, it provides a way of transferring a qubit (a unit of quantum information) from one location to another.
The latest reported record distance for quantum teleportation is 1400 km by the Chinese researchers using Micius satellite for space-based quantum teleportation.
Quantum information can be neither copied, not destroyedโจ
#QuantumTeleportation
๐ @AstroMechanics
โจQuantum Teleportation is a process in which quantum information can be transmitted from one location to another with the help of a shared quantum entanglement between the sending and receiving locations.
โข Quantum teleportation is not a form of transportation, but of communication, it provides a way of transferring a qubit (a unit of quantum information) from one location to another.
The latest reported record distance for quantum teleportation is 1400 km by the Chinese researchers using Micius satellite for space-based quantum teleportation.
Quantum information can be neither copied, not destroyedโจ
#QuantumTeleportation
๐ @AstroMechanics
โจThe Oh-My-God particle was an ultra-high-energy cosmic ray that was detected on 15 October 1991 by the University of Utah.
--It was traveling so absurdly fast that time dilation dictates that it would have experienced only 16 days of time since the beginning of the universeโจ
#Particles
๐ @AstroMechanics
--It was traveling so absurdly fast that time dilation dictates that it would have experienced only 16 days of time since the beginning of the universeโจ
#Particles
๐ @AstroMechanics