What is the galactic tide?
A galactic tide is a tidal force experienced by objects subject to the gravitational field of a galaxy such as…
Astrophysics
The albedo in Astronomy
The albedo in astronomy is the fraction of light that is reflected by a celestial object that does not shine…
The effects of solar flares on Earth’s magnetosphere
Planet Earth is surrounded by a system of magnetic fields known as the magnetosphere. This vast, comet-shaped system deflects charged…
Cassiopeia A
Cassiopeia A (abbreviated to Cas A and also known as SN 1671) is a supernova remnant (SNR), located at a…
Talking about Dark Matter and Dark Energy
The visible universe—including Earth, the sun, other stars, and galaxies—is made of protons, neutrons, and electrons bundled together into atoms….
Mysterious Giant Radio Pulses From Pulsars Are Hundreds of Times More Energetic Than Previously Believed
A group led by scientists from the RIKEN Cluster for Pioneering Research, using coordinated observations of the Crab pulsar in…
New NASA Visualization Probes the Light-Bending Dance of Binary Black Holes
A pair of orbiting black holes millions of times the Sun’s mass perform a hypnotic pas de deux in a…
Dark Matter Is the Most Likely Source of Excess of Gamma Rays From Center of the Milky Way
In the recent past, space missions dedicated to the study of astrophysical signals in the high-energy spectrum revealed a series…
How many stars can you see?
Many of us at least once in our life raising our eyes to the sky wondered how many stars were…
What is the Gravitational collapse?
Gravitational collapse is the contraction of an astronomical object due to the influence of its own gravity, which tends to…