SpaceX’s Crew Dragon spacecraft, perched atop the company’s Falcon 9 rocket, takes off from Kennedy Space Center in Cape Canaveral, Florida, carrying two NASA astronauts to the International Space St…
Biggest Asteroid To Fly Between Earth & Moon Almost Passed By Undetected, Scientists Made Discovery 2 Days… – India Times
Asteroids flying past earth is nothing new. But what does one say when one flies by super close? It’s not a reassuring thought for sure. One can find some solace in the fact that scientists are usually aware of when and which asteroid will zoom past our plane…
Asteroids flying past earth is nothing new. But what does one say when one flies by super close? It’s not a reassuring thought for sure. One can find some solace in the fact that scientists are usually aware of when and which asteroid will zoom past our planet. However, in June, one asteroid flew past earth, undetected, until at least two days after the event which is when the realisation hit scientists.
On June 5, asteroid 2020 LD measuring nearly 100 metres in diameter, travelling at a speed of 60,826 miles per hour, came even closer to the earth than the moon.
According to European Space Agency (ESA), the space rock was 0.8 lunar distances away from earth. That means, if the moon is 384, 317 km away from earth, asteroid 2020 LD was 307,454 km away when it flew by.
It was the biggest asteroid to pass between earth and the moon this year. It was also the biggest asteroid to come this close to earth since 2011, and according to Earth Sky, one of the biggest ever to have flown by earth without being detected.
It was only on June 7 that scientists made this discovery when astronomers in Hawaii first noticed 2020 LD travelling at 60,826 miles per hour (97,890 km/h) relative to earth.
Also Read: Three Asteroids To Approach Earth In June
After analysing its orbit, scientists concluded that the asteroid was that close to earth two days earlier.
This is not the first time big asteroids have come close to earth, it has happened before as well.
Another asteroid ‘fly-by’ that caught our attention was
asteroid 1998 OR2. The Arecibo Observatory in Puerto Rico captured a radar image of asteroid 1998 OR2 that passed within 3.9 million miles (6.3 million kilometres) of earth on April 29.
At the time team members all wore masks in the facility to contain the spread of coronavirus and what they found interesting about that asteroid was that, even it was shaped like a mask!
‘TeamRadar and the NAIC Observatory staff are taking the proper safety measures as we continue observations. This week we have been observing near-earth asteroid 1998 OR2, which looks like it’s wearing a mask! one of their tweets reads.
#TeamRadar and the @NAICobservatory staff are taking the proper safety measures as we continue observations. This week we have been observing near-Earth asteroid 1998 OR2, which looks like it’s wearing a mask! It’s at least 1.5 km across and is passing 16 lunar distances away! pic.twitter.com/X2mQJCT2Qg
Arecibo Radar (@AreciboRadar) April 18, 2020
We hope the next time a big asteroid passes between the earth and the moon, we know about it well in advance. Here’s to Science!
Also Read: Four Asteroids Are Approaching Earth Says NASA
Scientists devise new plan to test if mysterious ‘Planet Nine’ is primordial black hole – RT
Scientists at Harvard University have developed a new method to hunt down black holes beyond our galaxy which may finally figure out what is going on with the oft-theorized but never-witnessed ‘Planet Nine.’
The method will make use of the upcoming Legacy Survey of Space and Time (LSST) mission, which is expected to begin operations in mid-2022. Using a tennis-court-sized mirror and a 3,200-megapixel camera, the researchers will seek out accretion flares, which shoot out of disrupted comets as they are stretched apart by black holes.
Space rocks pulled in by the incredible gravitational force of a black hole melt long before they reach the event horizon, owing to the heat emitted by background accretion – that is, the stretching out – of gas and other material on its doorstep. On melting, these small bodies, such as asteroids, comets and whatever other material was unfortunate to stray too close to the black hole, emit radiation bright enough to be visible against the absolute darkness – or so the boffins hope.
“Because black holes are intrinsically dark, the radiation that matter emits on its way to the mouth of the black hole is our only way to illuminate this dark environment,” explained, one of the leading scientists, Dr Avi Loeb.
Using this method, Loeb claims we can finally detect, or rule out, the planet-mass black holes on the edge of the Oort cloud, thus solving the long-standing mystery of the so-called ‘Planet Nine.’
Also on rt.comPlanet 9 next? Hundreds of minor planets found beyond Neptune in OUR SOLAR SYSTEMTheories about Planet Nine range from it being an undetected or ‘missing’ planet, banished from our solar system, to it being a primordial black hole, formed soon after the Big Bang, creating disturbances on the edge of our galactic yard.
“Planet Nine is a compelling explanation for the observed clustering of some objects beyond the orbit of Neptune. If the existence of Planet Nine is confirmed through a direct electromagnetic search, it will be the first detection of a new planet in the solar system in two centuries, not counting Pluto,” said Amir Siraj, a Harvard astrophysics undergrad involved in the latest research.
One of the ideas put forth was the possibility that Planet Nine could be a grapefruit-sized black hole with a mass of five to 10 times that of the Earth.
The LSST mission will have instruments that are expected to be sensitive enough to detect radiation from beyond the Oort cloud – roughly 100,000 times the distance between the Earth and the Sun. It will reportedly boast a field of view that covers the whole sky, collecting a whopping 10 terabytes of data per night, once fully operational.
Also on rt.comUFO hunter claims NASA Mars photo shows remains of ancient alien jet engine (POLL)Think your friends would be interested? Share this story!
Long-lost ‘mega-structure’ in space stretching 1.4BILLION light years discovered in mysterious ‘dark zone’ bel – The Sun
ASTRONOMERS claim to have found a mysterious space structure spanning 1.4 billion light years across.
It’s being referred to as the ‘South Pole Wall’ and has been picked up on stunning 3D maps of the universe.
This is a visualisation of the structure
The discovery is said to be one of the biggest cosmic structures ever.
For some perspective, one light-year is roughly six trillion miles so 1.4 billion light years is a struggle to even comprehend.
The Milky Way is around 100,000 lights years wide and it’s thought to take under two light years to reach the furthest point in our Solar System.
The South Pole Wall is said to be a huge wall of hundreds of thousands of galaxies below Earth’s South Pole.
The South Pole Wall is not visible on this all-sky map but it’s said to be located near the Chamaeleon complex, which is a large star-forming region
What’s unusual about the discovery is that such a structure could remain undetected until now.
This is largely because parts of it sit half a billion light-years away from the Milky Way galaxy.
The galaxies in the South Pole Wall are said to be in a cosmic web.
According to Live Science, cosmic web’s string galaxies together like pearl necklaces via huge strands of hydrogen gas.
This structure then surrounds large empty voids.
Cosmographers, people who specialise in mapping these things, used new tech to look into a zone called the Zone of Galactic Obscuration.
This is a dark spot in the southern region of the sky because the bright light of the Milky Way obscures the view of what’s behind.
Researcher Daniel Pomarede and colleagues from Paris-Saclay University in France used a new technique to detect hidden masses and dark matter.
Dark matter makes up most of the matter in the universe but is invisible and is detected by its gravitational pull.
The researchers were able to create a mind-blowing map of a large section of material in the southernmost point of the sky that has previously gone unnoticed.
Discovering structures like this can add to our understanding of the universe.
However, the scientists admit that they may not have even discovered the extent of the South Pole Wall.
They wrote: “We will not be certain of its full extent, nor whether it is unusual, until we map the universe on a significantly grander scale.”
These findings have been published in The Astrophysical Journal.
Here’s some things you might not have known about our galaxy…
- The Milky Way is almost as old as the Universe itself with recently estimates suggestings that the Universe is around 13.7 or 13.8billion years old and the Milky Way is thought to be about 13.6billion years old
- the Milky Way is disk shaped and measures about 120,000 light years across
- It has a supermassive black hole in the middle called Sagittarius A*
- It contains over 200 billion stars
- It is thought to have an invisible halo made of dark matter
Nasa reveals plan to send new Perseverance rover to hunt for alien life on Mars this year
In other space news, Jupiter is about to reach opposition, meaning stargazers can see the planet at its brightest this weekend.
Nasa has shared an image of rare ‘red sprite’ lightning that looks scarily similar to an alien invasion.
And, an ex Nasa genius is selling the ‘smell of space’ in a perfume bottle.
What do you make of this mysterious structure? Let us know in the comments…
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