Category: Astronomy

The largest virtual universe ever built: 25,000 million galaxies

A catalog of 25,000 million virtual galaxies from 2 billion digital particles, the largest universe that has ever been built, has been conceived by researchers from the University of Zurich (UZH) thanks to the power of a supercomputer. But why build a universe of lies so gigantic?
Fly over in this 3D video the landing zone of the Rosalind Franklin rover on Mars
Fly over in this 3D video the landing zone of the Rosalind Franklin rover on Mars
Before the arrival of the Rosalind Franklin rover from ESA and Roscosmos in 2021, images from NASA's MRO orbiter have been used to produce 3D models of the Oxia Planum terrain on Mars, as you can see in the following video. The area covers a large part of the landing ellipse 120 by 19 kilometers, with the crater eroded in the overpass towards the edge of the ellipse.
The universe could be younger than we had thought: no less than 2,000 million years younger
The universe could be younger than we had thought: no less than 2,000 million years younger
Since it appeared, the Universe has expanded at a rate described by the Hubble constant. However, the value has been subject to different estimates and controversies. Moreover, although in the original formulation, this parameter appeared as a fixed value number, the relativistic cosmological models on which the Big Bang is based suggested that the Hubble parameter was not really a constant but a parameter that varied slowly with the time, so modernly many authors refer to the "Hubble constant" more properly as the Hubble parameter.
A hotel in orbit around the Earth with artificial gravity by 2025?
A hotel in orbit around the Earth with artificial gravity by 2025?
The Gateway Foundation is building a space hotel inspired by the concepts of a Nazi rocket scientist, Wernher von Braun. Does it sound like science fiction? Maybe. At the moment, the space station is expected to be operational by 2025. The company plans to assemble it into orbit, using robots and drones.
The first interstellar comet is identified crossing our solar system
The first interstellar comet is identified crossing our solar system
First detected as a comet candidate by Russian astronomer Guennadi Borisov on August 30, the discovery of the first interstellar comet identified as ongoing by our solar system has been reported by the IAU Minor Planet Center (International Astronomical Union ).
This is the most massive neutron star and has just been discovered: it has 333,000 times the mass of the Earth
This is the most massive neutron star and has just been discovered: it has 333,000 times the mass of the Earth
Detected approximately 4,600 light years from Earth thanks to the observations of the Green Bank telescope, the NANOGrav Physics Frontiers Center has described in a recent study published in Nature what is the most massive neutron star known. Called J0740 + 6620, it is a rapidly rotating pulsar that contains 2.17 times the mass of the sun (which is 333.
The largest telescope in the world is now fully operational
The largest telescope in the world is now fully operational
With 500 meters in diameter, the FAST is the largest telescope in the world and, after three years of testing, can now be declared fully operational. Built on a natural depression the size of 30 soccer fields, the radio telescope is made of 4,450 individual panels that scan the sky. FAST FAST is in Pingtang County, Guizhou Province, southwest of China.
We add 1,000 more objects of space junk again: there are already more than 19,500
We add 1,000 more objects of space junk again: there are already more than 19,500
In January 2018, 18,835 space debris objects were orbiting the Earth, almost a thousand more compared to 2016. According to data from the NASA Office of the Orbital Remains Program, updated as of June 30, 2019, there are now 19,524 , another thousand more. Russia remains as the one with the most garbage in space, with a total of 6.
This is the first space cement, produced in space, thanks to NASA
This is the first space cement, produced in space, thanks to NASA
We already know that cement can be produced in space in a practical way, and not only theoretically, which will reduce material transport costs, thanks to a recent experiment carried out by NASA in orbit to Earth. In the so-called MICS (Microgravity Investigation of Cement Solidification) project, tricalcium silicate (C3S) and water outside Earth's gravity were mixed for the first time, that is, under microgravity conditions.
This rolling rock of Mars has been baptized in honor of the Rolling Stones
This rolling rock of Mars has been baptized in honor of the Rolling Stones
A little bigger than a golf ball, NASA has dedicated a curious rolling rock on Mars to the Rolling Stones. The reason the rock has rolled is none other than human intervention. The rock seemed to have rolled a meter on November 26, 2018, driven by InSight's retro-rocket vehicles when the spacecraft landed to study the Red Planet.
BioRock, an experiment to study the interaction of microbes with extraterrestrial rocks
BioRock, an experiment to study the interaction of microbes with extraterrestrial rocks
The first extraterrestrial biomining test and the first use of a prototype miniature mining reactor in space, BioRock, has taken place at the International Space Station (ISS). This is the first study of how microbes grow and alter planetary rocks in microgravity and simulated Martian gravity.
Supernova powder can be identified in the Antarctic snow
Supernova powder can be identified in the Antarctic snow
A supernova (from Latin nova, "new") is a stellar explosion that can manifest itself in a very remarkable way, even with the naked eye. Supernovae produce very intense flashes of light that can last from several weeks to several months. The supernova explosion causes the expulsion of the outer layers of the star through powerful shock waves, enriching the surrounding space with heavy elements.
About 60 percent of the water on Earth comes from outer space
About 60 percent of the water on Earth comes from outer space
The volatile substances of the meteorites contributed to the formation of the Earth's protective atmosphere in its beginnings. And, thanks to new measurements, it is estimated that about 60 percent of the water on Earth today comes from this source. This created the conditions for life on Earth to develop in its current form, according to this new study carried out by the University of Tübingen, in which the isotopes of selenium in rocks derived from the Earth's mantle have been measured.
In this video you can see how Parker Solar Probe captures images of solar wind structures as they leave the Sun
In this video you can see how Parker Solar Probe captures images of solar wind structures as they leave the Sun
The Parker Solar Probe WISPR instrument captures images of solar wind structures as they rise from the Sun, as you can see in the following video. The WISPR instrument from NASA's Parker Solar Probe mission saw the solar wind pass during the spacecraft's first solar encounter in November 2018.
Three suns shine in the sky of this newly discovered planet
Three suns shine in the sky of this newly discovered planet
One of the most iconic images of science fiction are the two suns that we see shine in the distance, in the arid landscapes of Tatooine, in Star Wars. However, a newly discovered planet apparently adds another star to the sky. Baptized as LTT 1445Ab in the data collected by NASA's Exoplanets in Transit Study Satellite (TESS), it orbits only one of the three stars, all of them red dwarfs in the second half of their lives, and the system is about 22.5 light years from Earth.
Tonight you can see the rain of the Perseids thanks to a comet larger than the one that killed the dinosaurs
Tonight you can see the rain of the Perseids thanks to a comet larger than the one that killed the dinosaurs
Tonight, you could watch the Perseid meteor shower show depending on where you are. During peak hours, about 100 meteors per hour may be contemplated. The rain of Perseids are not stars, but debris, remains of the Swift-Tuttle comet that is the largest object in our solar system that passes very close to the Earth in a cyclic manner.
These are the highest speeds developed by exploration vehicles in other worlds
These are the highest speeds developed by exploration vehicles in other worlds
In 1993, video game designer Richard Garriott bought the Lunokhod 2 space exploration vehicle at auction for the modest price of $ 68,500. It was the heaviest vehicle that landed on a celestial body (836 kg), until the Curiosity landed on Mars in 2012 (900 kg). The problem is that the vehicle is still on the moon.
These are the boarding passes will travel to Mars and are more than eight million
These are the boarding passes will travel to Mars and are more than eight million
We had already talked about this campaign consisting of sending digitized boarding passes to Mars, as if their holders also traveled there in the Matrix style. Finally, more than eight million will travel. All of them will travel on the Mars 2020 mission, which is scheduled to be launched in July 2020 from Cape Canaveral, and its arrival is expected in February 2021 at the Jezero crater.
Could dark matter be even older than the Big Bang?
Could dark matter be even older than the Big Bang?
The Big Bang theory states that the universe was in a state of very high density and temperature and then expanded. Modern measurements date to this moment approximately 13.8 billion years ago, which would therefore be the age of the universe. According to a new study conducted by Johns Hopkins University and which has been published in the journal Physical Review Letters.
The brains of astronauts traveling to deep space may be affected
The brains of astronauts traveling to deep space may be affected
In the year 2047, the rescue ship "Lewis and Clark" is sent to investigate the mysterious reappearance in the orbit of Neptune of an experimental ship, the "Final Horizon", disappeared years before with all its crew. Once there, the astronauts will lose their sanity ... and we can not count more to not incur spoilers of the movie Event Horizon (Final Horizon).
These are the images of the asteroid that "brushed" the Earth spread by ESA
These are the images of the asteroid that "brushed" the Earth spread by ESA
Only one day after being discovered in the approach path by the Southern Observatory for the Research of Near-Earth Asteroids (SONEAR), on July 25, the 100-meter-wide asteroid 2019 OK passed 65,000 kilometers from Earth . It was then that two separate telescopes in the International Optical Scientific Network (ISON) took images of the space rock at the request of ESA.