Habitable Planets Could Exist around Pulsars

It is theoretically possible that habitable planets exist around pulsars – spinning neutron stars that emit short, quick pulses of radiation. According to new research, such planets must have an enormous atmosphere that converts the deadly x-rays and high energy particles of the pulsar into heat. The results, from astronomers at the University of Cambridge[…]

Why Physics Needs Art to Help Picture the Universe

Fig 1 By Dr. Frank Wilczek / 12.11.2015 Herman Feshbach Professor of Physics Massachusetts Institute of Technology Historians of science usually date the origin of the Scientific Revolution as 1543, when Copernicus’ De Revolutionibus first put the Earth in motion. While that is a convenient and defensible choice, it is not the only good candidate. An earlier[…]

Ancient Greece and the Origins of the Heliocentric Theory

Illuminated illustration of the Ptolemaic geocentric conception of the Universe by Portuguese cosmographer and cartographer Bartolomeu Velho (?-1568) / Wikimedia Commons      By (left-to-right) Dr. Milan S. Dimitrijevic, Dr. Efstratios Theodossiou, Aris Dacanalis, and Petros Z. Mantarakis Dimitrijevic: Research Professor, Astronomical Observatory Belgrade Theodossiou: Associate Professor of History and Philosophy of Astronomy and Physical Sciences, University of[…]

First Detection of Gravitational Waves and Light Produced by Colliding Neutron Stars

In a galaxy far away, two dead stars begin a final spiral into a massive collision. The resulting explosion unleashes a huge burst of energy, sending ripples across the very fabric of space. In the nuclear cauldron of the collision, atoms are ripped apart to form entirely new elements and scattered outward across the Universe.[…]