Science
Solar Energy Tracker Powers Down After 17 Years
The Sun is Earth’s primary power source. Energy from the Sun, called solar irradiance, drives Earth’s climate, temperature, weather, atmospheric chemistry, ocean cycles, energy balance and more.
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Iron is everywhere in Earth's vicinity, suggest two decades of cluster data.
Iron in the solar wind and Earth's magnetosphere.
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The Strange Orbits of ‘Tatooine’ Planetary Disks
Two examples of aligned and misaligned protoplanetary disks around binary stars (circumbinary disks), observed with ALMA. Binary star orbits are added for clarity. Left: in star system HD 98800 B, the disk is misaligned with inner binary stars. The stars are orbiting each other (in this view, towards and away from us) in 315 days. Right: in star system AK Sco, the disk is in line with the orbit of its binary stars. The stars are orbiting each other in 13.6 days.
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Chandra Data Tests "Theory of Everything"
X-ray Images of Perseus Cluster
Astronomers used Chandra to look for extraordinarily low-mass "axion-like" particles in the Perseus galaxy cluster. A Chandra observation lasting over five days of the central supermassive black hole in the center of the cluster showed no evidence for certain axion-like particles, which some theorists think can explain dark matter. The lack of a detection in these Chandra observations helps rule out some versions of string theory, a set of models intended to tie together all known forces, interactions, and particles.
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Quasar Tsunamis Rip Across Galaxies
QUASAR OUTFLOWS ILLUSTRATION
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Black Hole Team Discovers Path to Razor-Sharp Black Hole Images
Black Hole Team Discovers Path to Razor-Sharp Black Hole Images
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GRACE, GRACE-FO Satellite Data Track Ice Loss at the Poles
Greenland's Steenstrup Glacier, with the midmorning sun glinting off the Denmark Strait in the background. The image was taken during a NASA IceBridge airborne survey of the region in 2016.
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A Star-Bursting Galaxy Born from the Collision of Dwarfs
This 2.5 x 2.5 arcminute image shows VCC 848, a compact dwarf galaxy that scientists think formed from the merger of two smaller galaxies.
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A New Theory of Magnetar Formation for Neutron Stars
Figure 1: 3D snapshots of the magnetic field lines in the convective zone inside a newborn neutron star. Inward (outward) flows are represented by the blue (red) surfaces. Left: strong field dynamo discovered for fast rotation periods of a few milliseconds, where the dipole component reaches 1015 G. Right: for slower rotation, the magnetic field is up to ten times weaker.
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Continued Gravitational-Wave Discoveries from Public Data
Numerical-relativity simulation of the first binary black-hole merger observed by the Advanced LIGO detector on September 14, 2015.
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Human Rights
Fostering a More Humane World: The 28th Eurasian Economic Summi
Conscience, Hope, and Action: Keys to Global Peace and Sustainability
Ringing FOWPAL’s Peace Bell for the World:Nobel Peace Prize Laureates’ Visions and Actions
Protecting the World’s Cultural Diversity for a Sustainable Future
Puppet Show I International Friendship Day 2020