Antarctic Impulsive Transient Antenna (ANITA)

Antarctic Impulsive Transient Antenna (ANITA)

Researchers using NASA's ANITA have succeeded in finding "a fountain of high-energy particles erupting from the ice" in Antarctica which according to the researchers could be proof of a parallel universe.

Antarctic Impulsive Transient Antenna (ANITA)

Top Current Affairs 27th May 2020

Source | The Hindu


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Antarctic Impulsive Transient Antenna (ANITA)

Key Takeaways

  • The experiment was done to identify high energy particles using NASA’s Antarctic Impulsive Transient Antenna (ANITA), a balloon that can carry delicate electronic antennas above the frozen wastes of Antarctica.
  • The Antarctic Impulsive Transient Antenna (ANITA) is the first NASA observatory for neutrinos of any kind.

Read More: Ionospheric Electron Density


Context: Researchers using NASA’s ANITA have succeeded in finding “a fountain of high-energy particles erupting from the ice” in Antarctica which according to the researchers could be proof of a parallel universe.

What are the new findings?

  • According to a recent experiment, the team of NASA researchers found high energy particles which seemed to come up out of Earth.
  • The experiment was done to identify high energy particles using NASA’s Antarctic Impulsive Transient Antenna (ANITA), a balloon that can carry delicate electronic antennas above the frozen wastes of Antarctica.
  • The high-energy particles detected by device can only come “down” from space. However, the particles detected by ANITA seem to be travelling up.
  • This indicates that the particles are travelling back in time suggesting the existence of a parallel universe that travels back in time.
  • According to the report, the only way for a particle to behave this way is if it had changed its nature before entering the Earth and then changed back again.

Also Read: DOUBLE ASTEROID REDIRECTION TEST (DART)



What you should know about Antarctic Impulsive Transient Antenna (ANITA)?

The Antarctic Impulsive Transient Antenna (ANITA) is the first NASA observatory for neutrinos of any kind. Neutrinos are of great interest to astrophysicist as they are the only particle that can reach earth unattenuated at all energies.

The Antarctic Impulsive Transient Antenna (ANITA) experiment has been designed to study ultra-high-energy (UHE) cosmic neutrinos by detecting the radio pulses emitted by their interactions with the Antarctic ice sheet.

This is to be accomplished using an array of radio antennas suspended from a helium balloon flying at a height of about 37,000 meters.

  • The neutrinos, with energies on the order of 1018 eV, produce radio pulses in the ice because of the Askaryan effect.
    • Askaryan effect is the phenomenon whereby a particle traveling faster than the phase velocity of light in a dense dielectric (such as salt, ice or the lunar regolith) produces a shower of secondary charged particles which contain a charge anisotropy (property of substances to exhibit variations in physical properties along different molecular axes) and thus emits a cone of coherent radiation in the radio or microwave part of the electromagnetic spectrum.

As of January 2020, ANITA has made four flights and detected numerous cosmic rays coming from the sky within the field of view of the experiment.

At present, America, Australia and China have astronomical observatories in Antarctica. The US was among the pioneers to begin astronomical observations from an observatory at its Amundsen–Scott South Pole Station. Now, it has three 10-meter South Pole Telescope (SPT) telescopes.


Read More: Blazars : First Systematic Study Conducted



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