Did you know?
โจWhen Guion Bluford, better known as Guy, launched aboard Challenger's STS-8 mission on August 30, 1983, he became the first African-American to fly in space. He logged 688 hours in space during his time as a NASA astronautโจ
#Fact
@AstroMechanics
โจWhen Guion Bluford, better known as Guy, launched aboard Challenger's STS-8 mission on August 30, 1983, he became the first African-American to fly in space. He logged 688 hours in space during his time as a NASA astronautโจ
#Fact
@AstroMechanics
Pluto's Largest Moon
โจThis photo of Plutoโs largest moon, Charon, was snapped by the New Horizons spacecraft. Charon is a very large natural satellite. In fact the moon is nearly half the size of Pluto. The combination is sometimes even referred to as a double dwarf planet system. The reddish portion at the top is a polar region known informally as Mordor Maculaโจ
#Pluto'sMoon
๐ @AstroMechanics
โจThis photo of Plutoโs largest moon, Charon, was snapped by the New Horizons spacecraft. Charon is a very large natural satellite. In fact the moon is nearly half the size of Pluto. The combination is sometimes even referred to as a double dwarf planet system. The reddish portion at the top is a polar region known informally as Mordor Maculaโจ
#Pluto'sMoon
๐ @AstroMechanics
New Exoplanet
โจAstronomers have discovered an exoplanet located 90 light-years away from Earth with a potentially rich atmosphere that may contain water clouds. Nasa said that the newly-discovered exoplanet, TOI-1231 b, is more than three and a half times as big as Earthโจ
#NewDiscovery
๐ @AstroMechanics
โจAstronomers have discovered an exoplanet located 90 light-years away from Earth with a potentially rich atmosphere that may contain water clouds. Nasa said that the newly-discovered exoplanet, TOI-1231 b, is more than three and a half times as big as Earthโจ
#NewDiscovery
๐ @AstroMechanics
Did you know?
โจ6-10 billion light-years away, there is a void in space 1 billion light-years across.
It is completely empty of both normal and dark matter. It emits no detectable radiation or light of any kindโจ
#Fact
๐ @AstroMechanics
โจ6-10 billion light-years away, there is a void in space 1 billion light-years across.
It is completely empty of both normal and dark matter. It emits no detectable radiation or light of any kindโจ
#Fact
๐ @AstroMechanics
โจSTEVE is an atmospheric optical phenomenon that appears as a purple and green light ribbon in the sky.
๐ฅSTEVE caused by a 25 km wide ribbon of hot plasma at an altitude of 450 km, with a temperature of 3,000 ยฐC and flowing at a speed of 6 km/s (3.7 mi/s) (compared to 10 m/s (33 ft/s) outside the ribbon). The phenomenon is not rare, but had not previously been investigatedโจ
#Steve
๐ @AstroMechanics
๐ฅSTEVE caused by a 25 km wide ribbon of hot plasma at an altitude of 450 km, with a temperature of 3,000 ยฐC and flowing at a speed of 6 km/s (3.7 mi/s) (compared to 10 m/s (33 ft/s) outside the ribbon). The phenomenon is not rare, but had not previously been investigatedโจ
#Steve
๐ @AstroMechanics
NASA SEEKS NEXT FLIGHT DIRECTORS FOR HUMAN SPACEFLIGHT MISSION
โจNASA is looking for leaders for one of the best jobs on Earth for human spaceflight โ including missions to the Moon โ the position of flight director in mission control at the agencyโs Johnson Space Center in Houston.
๐ฎThose chosen as NASA flight directors will lead human spaceflight missions to the International space station and upcoming Artemis missions to the Moon, and, eventually, the first human missions to Mars.
โApplications for new flight directors is open now through Thursday, Dec. 16. U.S. citizens can apply at: https://go.nasa.gov/3ltYoPOโจ
#AstroNews
๐ @AstroMechanics
โจNASA is looking for leaders for one of the best jobs on Earth for human spaceflight โ including missions to the Moon โ the position of flight director in mission control at the agencyโs Johnson Space Center in Houston.
๐ฎThose chosen as NASA flight directors will lead human spaceflight missions to the International space station and upcoming Artemis missions to the Moon, and, eventually, the first human missions to Mars.
โApplications for new flight directors is open now through Thursday, Dec. 16. U.S. citizens can apply at: https://go.nasa.gov/3ltYoPOโจ
#AstroNews
๐ @AstroMechanics
โจSedna is a dwarf planet with a highly elliptical orbit around sun. It is about three times as far Neptune from the Sun. Scientists hypothesize that it was placed in its orbit by a passing star, as there is no other explanation for its unusual orbit around the Sunโจ
#Sedna
๐ @AstroMechanics
#Sedna
๐ @AstroMechanics
๐1
๐ฅDid you know?
โจIt's by pure coincidence that we exist on a planet and in a time when our star(Sun) is covered exactly during a total eclipse. No other known planet has total eclipse and at some point in the planet future they won't occur on Earth eitherโจ
#Fact
๐ @AstroMechanics
โจIt's by pure coincidence that we exist on a planet and in a time when our star(Sun) is covered exactly during a total eclipse. No other known planet has total eclipse and at some point in the planet future they won't occur on Earth eitherโจ
#Fact
๐ @AstroMechanics
The Falcon Lake incident (1967)
โจOn day in Manitoba, Canada, a person named Stefan Michalak apparently saw an unidentified alien craft land nearby when he was out prospecting for gold and silver.
๐Stefan approached the craft and apparently heard human-like voices muffled by the engines. He went close enough to poke his head inside the craft and saw "a maze of lights" within.
๐ธHe was then startled when the craft took off and injured by a beam of heat that shot from the ship. The heat set fire to his clothes and severely burnt his chest. Doctors and authorities could not explain his injuries and this added credence to his story which he repeated in interviews until his death in 1999โจ.
#UFOSight
๐ @AstroMechanics
โจOn day in Manitoba, Canada, a person named Stefan Michalak apparently saw an unidentified alien craft land nearby when he was out prospecting for gold and silver.
๐Stefan approached the craft and apparently heard human-like voices muffled by the engines. He went close enough to poke his head inside the craft and saw "a maze of lights" within.
๐ธHe was then startled when the craft took off and injured by a beam of heat that shot from the ship. The heat set fire to his clothes and severely burnt his chest. Doctors and authorities could not explain his injuries and this added credence to his story which he repeated in interviews until his death in 1999โจ.
#UFOSight
๐ @AstroMechanics
What gives the planet its red color?
โจThe answer can be found it is regolith. The regolith is the blanket of loose rocks and dust that covers a celestial body. The regolith of Mars is found to have minerals rich in iron, which gives it its typical red colorโจ
#AstroInfo
๐ @AstroMechanics
โจThe answer can be found it is regolith. The regolith is the blanket of loose rocks and dust that covers a celestial body. The regolith of Mars is found to have minerals rich in iron, which gives it its typical red colorโจ
#AstroInfo
๐ @AstroMechanics
โLargest Asteroid
โจThe largest asteroid in our solar system is a mammoth piece of space rock named Ceres, which is sometimes known as a drawf planet. It is almost 600 miles in diameter. It's by far the largest Asteroid Belt between Mars and Jupiter and accounts for a whole third of the belt's massโจ.
#LargestAsteriod
๐ @AstroMechanics
โจThe largest asteroid in our solar system is a mammoth piece of space rock named Ceres, which is sometimes known as a drawf planet. It is almost 600 miles in diameter. It's by far the largest Asteroid Belt between Mars and Jupiter and accounts for a whole third of the belt's massโจ.
#LargestAsteriod
๐ @AstroMechanics
๐Did you know?
โจThe North star is 4000 times brighter than our sun. The light we see when we look at the north star was generated in the year 1587, and it has been traveling through space for 434 years to reach usโจ
#Stars
๐ @AstroMechanics
โจThe North star is 4000 times brighter than our sun. The light we see when we look at the north star was generated in the year 1587, and it has been traveling through space for 434 years to reach usโจ
#Stars
๐ @AstroMechanics
๐In this image, the NASA/ESA Hubble Space Telescope captures a side-on view of NGC 3568, a barred spiral galaxy roughly 57 million light-years from the Milky Way in the constellation Centaurus. In 2014 the light from a supernova explosion in NGC 3568 reached Earth a sudden flare of light caused by the titanic explosion accompanying the death of a massive starโจ
#NASAInfo
๐ @AstroMechanics
#NASAInfo
๐ @AstroMechanics
There are more trees on Earth than stars in the Milky way๐ณโญ
โจThere are about three trillion trees on Planet Earth, and between 100-400 billion stars, approximately, in the galaxy.
#Fact
๐ @AstroMechanics
โจThere are about three trillion trees on Planet Earth, and between 100-400 billion stars, approximately, in the galaxy.
#Fact
๐ @AstroMechanics
Did you know?
โจMercury is a terrestrial planet. Mercuryโs magnetic field is just 1% of that of the Earthโจ
#Fact
๐ @AstroMechanics
โจMercury is a terrestrial planet. Mercuryโs magnetic field is just 1% of that of the Earthโจ
#Fact
๐ @AstroMechanics
The Last Full moon of the Year๐
โจThe last full moon of the year rises on Dec. 18, according to AccuWeather. Bundle up to enjoy the last full moon of the year. The last full moon of 2021 will reach peak illumination on Saturday, December 18, at 11:32 p.m. ET, according to NASA, but you can trace its path across the sky starting at just before sunsetโจ.
#AstronomicalEvents
๐ @AstroMechanics
โจThe last full moon of the year rises on Dec. 18, according to AccuWeather. Bundle up to enjoy the last full moon of the year. The last full moon of 2021 will reach peak illumination on Saturday, December 18, at 11:32 p.m. ET, according to NASA, but you can trace its path across the sky starting at just before sunsetโจ.
#AstronomicalEvents
๐ @AstroMechanics
The Moon has no atmosphere๐
โจThis means that the surface of the Moon is unprotected from cosmic rays, meteorites and solar winds, and has huge temperature variations. The lack of atmosphere means no sound can be heard on the Moon, and the sky always appears blackโจ
#MoonFact
๐ @AstroMechanics
โจThis means that the surface of the Moon is unprotected from cosmic rays, meteorites and solar winds, and has huge temperature variations. The lack of atmosphere means no sound can be heard on the Moon, and the sky always appears blackโจ
#MoonFact
๐ @AstroMechanics
โจQuantum tunnelling or tunneling (US) is the Quantum mechanical phenomenon where a Wavefunction can propagate through a potential barrier.
๐The transmission through the barrier can be finite and depends exponentially on the barrier height and barrier width. The wavefunction may disappear on one side and reappear on the other side. The wavefunction and its first derivative are continuous. In steady-state, the probability flux in the forward direction is spatially uniform. No particle or wave is lost. Tunneling occurs with barriers of thickness around 1โ3 nm and smallerโจ
#QuantumTunneling
๐ @AstroMechanics
๐The transmission through the barrier can be finite and depends exponentially on the barrier height and barrier width. The wavefunction may disappear on one side and reappear on the other side. The wavefunction and its first derivative are continuous. In steady-state, the probability flux in the forward direction is spatially uniform. No particle or wave is lost. Tunneling occurs with barriers of thickness around 1โ3 nm and smallerโจ
#QuantumTunneling
๐ @AstroMechanics