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A mirror image of Earth and sun

Phys.org

A football-sized asteroid – labeled 2018 GE3 – buzzed by Earth on April 16, 2018.
A football-sized asteroid – labeled 2018 GE3 – buzzed by Earth on April 16, 2018.




Cleanest Air in the World Discovered

Newsweek





Fermi Bubbles: Astronomers used the WHAM telescope to measure huge outflows of gas extending from the Milky Way's center known as the Fermi Bubbles. They were able to measure the velocity, density and pressure of the gas for the first time, confirming and extending previous measurements made by using a distant quasar as a light source to look through and measure the gas. Credit: Dhanesh Krishnarao and NASA
Fermi Bubbles: Astronomers used the WHAM telescope to measure huge outflows of gas extending from the Milky Way's center known as the Fermi Bubbles. They were able to measure the velocity, density and pressure of the gas for the first time, confirming and extending previous measurements made by using a distant quasar as a light source to look through and measure the gas. Credit: Dhanesh Krishnarao and NASA



Maize, an ancient food source, was first cultivated in the Maya lowlands around 6,500 years ago. Credit: UNM
Maize, an ancient food source, was first cultivated in the Maya lowlands around 6,500 years ago. Credit: UNM


What researchers have done is apply the theory of the holographic principle to black holes. In this way, their mysterious thermodynamic properties have become more understandable: focusing on predicting that these bodies have a great entropy and observing them in terms of quantum mechanics, you can describe them just like a hologram: they have two dimensions, in which gravity disappears, but they reproduce an object in three dimensions. Credit: Gerd Altmann for PIxabay
What researchers have done is apply the theory of the holographic principle to black holes. In this way, their mysterious thermodynamic properties have become more understandable: focusing on predicting that these bodies have a great entropy and observing them in terms of quantum mechanics, you can describe them just like a hologram: they have two dimensions, in which gravity disappears, but they reproduce an object in three dimensions. Credit: Gerd Altmann for PIxabay

Black holes? They are like a hologram

Phys.org

How bacteria fertilize soya

Phys.org
The impact that ended the age of dinosaurs kicked up vast quantities of sulfur and other materials into the atmosphere. Image credit: Chase Stone
The impact that ended the age of dinosaurs kicked up vast quantities of sulfur and other materials into the atmosphere. Image credit: Chase Stone