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  2. Stellar pulsation - Wikipedia

    en.wikipedia.org/wiki/Stellar_pulsation

    In the overall analysis of pulsating stars, the amplitude equations allow the bifurcation diagram between possible pulsational states to be mapped out. In this picture, the boundaries of the instability strip where pulsation sets in during the star's evolution correspond to a Hopf bifurcation. [17]

  3. Pale Blue Dot - Wikipedia

    en.wikipedia.org/wiki/Pale_Blue_Dot

    Pale Blue Dot is a photograph of Earth taken on February 14, 1990, by the Voyager 1 space probe from an unprecedented distance of approximately 6 billion kilometers (3.7 billion miles, 40.5 AU), as part of that day's Family Portrait series of images of the Solar System.

  4. Pulsar - Wikipedia

    en.wikipedia.org/wiki/Pulsar

    Though the general picture of pulsars as rapidly rotating neutron stars is widely accepted, Werner Becker of the Max Planck Institute for Extraterrestrial Physics said in 2006, "The theory of how pulsars emit their radiation is still in its infancy, even after nearly forty years of work." [44]

  5. Gamma-ray burst - Wikipedia

    en.wikipedia.org/wiki/Gamma-ray_burst

    Because their energy is strongly focused, the gamma rays emitted by most bursts are expected to miss the Earth and never be detected. When a gamma-ray burst is pointed towards Earth, the focusing of its energy along a relatively narrow beam causes the burst to appear much brighter than it would have been were its energy emitted spherically.

  6. The Day the Earth Smiled - Wikipedia

    en.wikipedia.org/wiki/The_Day_the_Earth_Smiled

    The fully processed composite photograph of Saturn taken by Cassini on July 19, 2013 Earth can be seen as a blue dot underneath the rings of Saturn. The photomosaic from NASA's "Wave at Saturn" campaign. The collage includes some 1,600 photos taken by members of the public on The Day the Earth Smiled.

  7. Earth ring theory may shed light on an unexplained ancient ...

    www.aol.com/news/earth-may-had-saturn-ring...

    Earth may have had a ring made up of a broken asteroid over 400 million years ago, a study finds. The Saturn-like feature could explain a climate shift at the time.

  8. PSR B1257+12 C - Wikipedia

    en.wikipedia.org/wiki/PSR_B1257+12_C

    PSR B1257+12 C, alternatively designated PSR B1257+12 d and also named Phobetor, is a super-Earth exoplanet orbiting the pulsar Lich approximately 2,315 light-years (710 parsecs; 22 quadrillion kilometres) away from Earth in the constellation of Virgo. It was one of the first planets ever discovered outside the Solar System.

  9. Photographer reveals theory behind infamous Enfield haunting ...

    www.aol.com/photographer-reveals-theory-behind...

    New adaptations of the infamous London ghost story are due to come to the West End and Apple TV+