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Posts tagged “astrophysics

The Genesis Project: New life on exoplanets

exoplanets

exoplanets

Can life be brought to celestial bodies outside our solar system, which are not permanently inhabitable? A new essay that has been published is trying to deal with this question. Over the last several years, the search for exoplanets has shown that very different types exist leading to new questions and a variety of possible answers.

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‘Space Warps’ and other citizen science projects reap major dividends for astrophysics

Three astrophysicists discuss the impact volunteer, citizen scientists are having on discovery -- and what the future holds

Three astrophysicists discuss the impact volunteer, citizen scientists are having on discovery -- and what the future holds

Thanks to the Internet, amateur volunteers known as “citizen scientists” can readily donate their time and effort to science–in fields ranging from medicine to zoology to astrophysics. The astrophysics project Space Warps offers a compelling example of why citizen science has become such a popular tool and how valuable it can be.

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It came from planet X: ‘Forbidden’ substances on super-Earths

Scientists say 'forbidden' substances may increase heat transfer rates and strengthen magnetic fields on super-Earths

Scientists say 'forbidden' substances may increase heat transfer rates and strengthen magnetic fields on super-Earths

Using mathematical models, scientists have ‘looked’ into the interior of super-Earths and discovered that they may contain compounds that are forbidden by the classical rules of chemistry — these substances may increase the heat transfer rate and strengthen the magnetic field on these planets.

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Computing with time travel

Computing with time travel

Computing with time travel

Why send a message back in time, but lock it so that no one can ever read the contents? Because it may be the key to solving currently intractable problems. It turns out that an unopened message can be exceedingly useful. This is true if the experimenter entangles the message with some other system in the laboratory before sending it.

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Research investigates whether solar events could trigger birth defects on Earth

solar flare

Studies find airplane crews at high altitude are exposed to potentially harmful levels of radiation from cosmic rays. But could these cosmic rays pose hazards even at sea level? In recent years, research has suggested congenital birth defects down on Earth’s surface could be caused by these “solar particle events” — spikes in cosmic rays from the sun that touch off the northern lights and sometimes hamper communications or the electric power grid.

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Dead galaxies in Coma Cluster may be packed with dark matter

Coma Cluster
Coma Cluster

This artist’s impression of the ‘quenching’ process shows how a normal blue (star-forming) galaxy lost its gas while falling into the Coma Cluster very early on in its formation.
Image credit goes to: Ameron Yozin, ICRAR/UWA

Galaxies in a cluster roughly 300 million light years from Earth could contain as much as 100 times more dark matter than visible matter, according to an Australian study. The research, published today, used powerful computer simulations to study galaxies that have fallen into the Coma Cluster, one of the largest structures in the Universe in which thousands of galaxies are bound together by gravity.

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Black hole hunters tackle a cosmic conundrum

Henize 2-10 galaxy

Image credit goes to : NASA

While mass media was busy misquoting Stephen Hawking and arguing about black holes, astrophysicists have been hard at work trying to solve still unanswered questions about them. Now a team has not only proven that a supermassive black hole exists in a place where it isn’t supposed to be, but in doing so have opened a new door to what things were like in the early universe.

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The universe is expanding, but how fast?

Nasa swift super nova

That same galaxy in a NASA Swift image is shown, with bars indicating the location of supernova SN 2011fe. The Swift image is a false-color image with UV emission blue and optical emission red.
Image credit goes to: NASA/Swift

We are expanding, well more accurately the universe is expanding. However researchers have found certain types of supernovae, or exploding stars, are more diverse than previously thought. The results have implications for big cosmological questions, such as how fast the universe has been expanding since the Big Bang. Most importantly, the findings hint at the possibility that the acceleration of the expansion of the universe might not be quite as fast as textbooks say.

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Interstellar helps physicists research spinning black holes

black hole inerstellar

There is a saying that life imitates art and while people like to disagree with the meaning of it, sometimes art can imitate life. For instance the team responsible for the Oscar-nominated visual effects at the centre of Interstellar, have turned science fiction into science fact by providing new insights into the powerful effects of black holes.

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