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NASA’s Voyager 1 discovers mysterious “hum” outside the solar system



(Planet Today) The National Aeronautics and Space Administration‘s (NASA) Voyager 1 probe has picked up a strange “hum” coming from outside our solar system.

(Article by Franz Walker republished from

Launched back in 1977, Voyager 1 is currently the most distant man-made object ever. Its 44-year journey has taken it past the edge of the solar system into the interstellar medium.

Now, instruments aboard Voyager 1 that have attempted to analyze that interstellar medium have discovered a constant humming, which appears to be the “noise” of the universe beyond our solar system. This drone appears to be emitted by interstellar gas or plasma waves found in the mostly empty space between star systems.

“It’s very faint and monotone, because it is in a narrow frequency bandwidth,” said Stella Koch Ocker, a doctoral student in astronomy at Cornell University, who found the noise. “We’re detecting the faint, persistent hum of interstellar gas.”

The findings, published in the journal Nature Astronomy, suggest that there is more going on in interstellar gas than scientists may have previously thought.

Hum hints at the true nature of interstellar plasma

When Voyager 1 went beyond the heliopause – the border between the solar system and interstellar space – it detected perturbations in the interstellar gas. But, in between those perturbations, which are caused by our own roiling sun, the researchers also uncovered a steady, persistent signature produced by the near-vacuum of space.

“The interstellar medium is like a quiet or gentle rain,” said senior author James Cordes, the George Feldstein Professor of Astronomy at Cornell. “In the case of a solar outburst, it’s like detecting a lightning burst in a thunderstorm and then it’s back to a gentle rain.”

Ocker, on the other hand, believes that the steady signature indicates that there is more low-level activity in the interstellar gas than previously thought. This then could allow researchers like her to track the spatial distribution of plasma when it’s not being perturbed by solar flares.

Another Cornell scientist on the team, Shami Chatterjee, explained that the discovery was important as it shows that researchers can measure the density of interstellar plasma on its own, without relying on activity from the sun.

“We’ve never had a chance to evaluate it. Now we know we don’t need a fortuitous event related to the sun to measure interstellar plasma,” Chatterjee said. “Regardless of what the sun is doing, Voyager is sending back detail. The craft is saying, ‘Here’s the density I’m swimming through right now. And here it is now. And here it is now. And here it is now.’ Voyager is quite distant and will be doing this continuously.”

Voyager 1 to reach end of life soon

The findings demonstrate how, 44-years on, Voyager 1 is still making important discoveries despite having already left the solar system. That said, the probe’s distance from the earth and its age mean that it won’t be able to do so for very long.

At 14 billion miles from the Earth, and getting further all the time, Voyager 1 can only send back very limited amounts of data. NASA scientists can only receive about 160 bits each second from the probe. This is much less than the already limited 21 kilobits it could send when it was launched and pales in comparison to the amount of data modern systems can transmit.

More importantly, Voyager 1’s power supply is going to run out soon. It’s expected that by 2025, the radioisotope thermoelectric generators that power the probe will no longer be able to supply enough electricity to power Voyager 1’s instruments.

Voyager 1’s eventual shutdown means that scientists will have to look towards other spacecraft on a solar exit trajectory to study the space beyond the solar system. The New Horizons probe, launched in 2006, could fulfill this role once it reaches the ends of the solar system in a decade or so.

Beyond that, future interstellar probes, launched with upcoming heavy-lift rockets from NASA and SpaceX could reach interstellar space much faster than previous probes.

Follow for more on how NASA is planning to study interstellar space.

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“Alien bases” may be hiding off the coast of Alaska, researchers say




An organization of civilian volunteers dedicated to the study of
unidentified flying objects (UFOs) has issued a statement based on
decades of studying eyewitness reports. According to Mutual UFO Network,
“alien bases” may be hiding off the coast of Alaska, reports

say the deep waters in this region may hold something surprising. After
analyzing reports from the ship’s crew from 1945, they hypothesized
that alien objects could be lurking underwater, off the coast of the

Alleged sightings of alien spacecraft nearly 80 years ago
have become a key point in research. Members of the organization believe
that UFOs move over water and may have “bases.”

allege crew members on a U.S. Army transporter ship sailing past Island
Adak saw a massive UFO sized 150 to 200 feet emerge from the water.
Although these reports are nowhere to be found, UFO enthusiasts believe
the unidentified flying vehicles likely were used to commute to
different supposed alien bases hiding in the deep waters.

the “secret reports” of the sailors aren’t available, investigators
have taken it upon themselves to unravel the mystery surrounding the
unidentified flying objects and they believe the ocean has alien bases
that humans aren’t aware of.

Enthusiasts claim that UFOs may be
using “underwater networks” or wormholes as superhighways to travel
between points in the universe. UFO researcher Johnny Enoch added that
such objects could serve as a vehicle for aliens.

There are also
theories that other places on Earth could serve as bases for alien life.
A mountain in Seoul, South Korea is believed to be hiding a UFO,
according to Dr. Steven Greer.

An episode of the series “The
Alaska Triangle” features satellite imagery that claims to show one of
the “alien bases” in the Pacific Ocean off the coast of California.

another researcher featured in the program showed markings from the sea
bed that she claimed could have been roadways for aliens.

the mysteries of the ocean remain unsolved, researchers continue their
search, trying to unravel the mystery of what may be hiding in the
depths of the waters off the coast of Alaska.

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Enormous City-Size Comet Racing Towards Earth Grows ‘Devil Horns’ After Massive Eruption




A volcanic comet the size of a mid-sized US city has
violently exploded for the second time in four months as it continues
racing toward the earth. And following the massive eruption, the cloud
of ice and gas sprouted what looked like a pair of gigantic devil horns.

The city-sized comet, named 12P/Pons-Brooks, is a cryovolcanic — or
cold volcano — comet. It has a solid nucleus, with an estimated diameter
of 18.6 miles, and is filled with a mix of ice, dust and gas known as
cryomagma. The nucleus is surrounded by a fuzzy cloud of gas called a
coma, which leaks out of the comet’s interior.

When solar radiation heats the comet’s insides, the pressure builds up
and the comet violently explodes, ejaculating its ice-cold innards into
space through seeping cracks in the nucleus’s shell.

Live Science report:
On Oct. 5, astronomers detected a large outburst from 12P, after the
comet became dozens of times brighter due to the extra light reflecting
from its expanded coma, according to the British Astronomical Association (BAA), which has been closely monitoring the comet 

Over the next few days, the comet’s coma expanded further and developed its “peculiar horns,”
reported. Some experts joked that the irregular shape of the coma also
makes the comet look like a science fiction spaceship, such as the
Millennium Falcon from Star Wars.

The unusual shape of the comet’s coma is likely due to an irregularity in the shape of 12P’s nucleus, Richard Miles, a BAA astronomer, told Live Science after the comet’s previous eruption.
The outflowing gas is likely being partially obstructed by a notch
sticking out on the nucleus, Miles said. As the gas continues to expand
away from the comet, the irregularity in the coma’s shape becomes more
defined and noticeable, he added.

12P is currently hurtling toward the inner solar system, where it
will be slingshotted around the sun on its highly elliptical 71-year
orbit around our home star — similar to the green comet Nishimura, which
pulled off a near-identical maneuver on Sept. 17

12P will reach its closest point to Earth on April 21, 2024, when it
may become visible to the naked eye before being catapulted back toward
the outer solar system. It will not return until 2095.

This is the second time 12P has sprouted its horns this year. On July
20, astronomers witnessed the comet blow its top for the first time in
69 years (mainly due to its outbursts being less frequent and harder to
spot during the rest of its orbit). On that occasion, 12P’s coma grew to
around 143,000 miles (230,000 km), which is around 7,000 times wider
than the comet’s nucleus.

It is unclear how large the coma grew during the most recent
eruption, but there are signs the outburst was “twice as intense” as the
previous one, the BAA noted. By now, the coma has likely shrunk back to
near its normal size.

As 12P continues to race toward the sun, there is a high probability
that we will witness several more major eruptions. It is possible that
those eruptions will be even bigger than the most recent one as the
comet soaks up more solar radiation, according to

But 12P is not the only volcanic comet that astronomers are currently
monitoring: 29P/Schwassmann-Wachmann (29P) — the most volatile volcanic
comet in the solar system — has also had several noticeable eruptions
in the last year.

In December 2022, 29P experienced its largest eruption in around 12 years, which sprayed around 1 million tons of cryomagma into space. And in April this year, for the first time ever, scientists accurately predicted one of 29P’s eruptions before it actually happened, thanks to a slight increase in the comet’s brightness in the lead-up to the icy explosion.

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