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New dawn for space storm alerts could help shield Earth's tech

Science Daily - Fri, 07/19/2024 - 12:38pm
Space storms could soon be forecasted with greater accuracy than ever before thanks to a big leap forward in our understanding of exactly when a violent solar eruption may hit Earth. Scientists say it is now possible to predict the precise speed a coronal mass ejection (CME) is travelling at and when it will smash into our planet -- even before it has fully erupted from the Sun.

Messier 24: Sagittarius Star Cloud

APOD - Fri, 07/19/2024 - 9:07am

 Sagittarius Star Cloud Messier 24: Sagittarius Star Cloud


Exoplanet-hunting telescope to begin search for another Earth in 2026

Science Daily - Thu, 07/18/2024 - 12:49pm
Europe's next big space mission -- a telescope that will hunt for Earth-like rocky planets outside of our solar system -- is on course to launch at the end of 2026. PLATO, or PLAnetary Transits and Oscillations of stars, is being built to find nearby potentially habitable worlds around Sun-like stars that we can examine in detail.

Another intermediate-mass black hole discovered at the center of our galaxy

Science Daily - Thu, 07/18/2024 - 12:48pm
So far, only about ten intermediate-mass black holes have been discovered in the entire universe. The newly identified black hole causes surrounding stars in a cluster to move in an unexpectedly orderly way.

<p><a href="https://apod.nasa.gov/apod

APOD - Thu, 07/18/2024 - 9:07am

When When


Astronomers spot a 'highly eccentric' planet on its way to becoming a hot Jupiter

Science Daily - Wed, 07/17/2024 - 12:09pm
The newly discovered planet TIC 241249530 b has the most highly elliptical, or eccentric, orbit of any known planet. It appears to be a juvenile planet that is in the midst of becoming a hot Jupiter, and its orbit is providing some answers to how such large, scorching planets evolve.

<p><a href="https://apod.nasa.gov/apod

APOD - Wed, 07/17/2024 - 9:07am

What are these unusual interstellar structures? What are these unusual interstellar structures?


How astronomers are using pulsars to observe evidence of dark matter

Science Daily - Tue, 07/16/2024 - 3:12pm
Tantalizing evidence of potential dark matter objects has been detected with the help of the Universe's 'timekeepers'. These pulsars -- neutron stars which rotate and emit lighthouse-like beams of radio waves that rapidly sweep through space -- were used to identify mysterious hidden masses. Pulsars earned their nickname because they send out electromagnetic radiation at very regular intervals, ranging from milliseconds to seconds, making them extremely accurate timekeepers.

Sun-like stars found orbiting hidden companions

Science Daily - Tue, 07/16/2024 - 3:11pm
Astronomers have uncovered what appear to be 21 neutron stars in orbit around stars like our Sun. The discovery is surprising because it is not clear how a star that exploded winds up next to a star like our Sun.

New analysis of Cassini data yields insights into Titan's seas

Science Daily - Tue, 07/16/2024 - 12:27pm
A new study of radar experiment data from the Cassini-Huygens mission to Saturn has yielded fresh insights related to the makeup and activity of the liquid hydrocarbon seas near the north pole of Titan, the largest of Saturn's 146 known moons.

Bizarre 'garden sprinkler-like' jet is spotted shooting out of neutron star

Science Daily - Tue, 07/16/2024 - 12:26pm
A strange 'garden sprinkler-like' jet coming from a neutron star has been pictured for the first time. The S-shaped structure is created as the jet changes direction due to the wobbling of the disc of hot gas around the star -- a process called precession, which has been observed with black holes but, until now, never with neutron stars.

<p><a href="https://apod.nasa.gov/apod

APOD - Tue, 07/16/2024 - 9:07am

Why does this galaxy have such a long tail? Why does this galaxy have such a long tail?


NASA's Webb investigates eternal sunrises, sunsets on distant world

Science Daily - Mon, 07/15/2024 - 1:58pm
Researchers using NASA's James Webb Space Telescope have finally confirmed what models have previously predicted: An exoplanet has differences between its eternal morning and eternal evening atmosphere. WASP-39 b, a giant planet with a diameter 1.3 times greater than Jupiter, but similar mass to Saturn that orbits a star about 700 light-years away from Earth, is tidally locked to its parent star. This means it has a constant dayside and a constant nightside -- one side of the planet is always exposed to its star, while the other is always shrouded in darkness.

Scorching storms on distant worlds revealed

Science Daily - Mon, 07/15/2024 - 1:58pm
An international study reveals the extreme atmospheric conditions on the celestial objects, which are swathed in swirling clouds of hot sand amid temperatures of 950C. Using NASA's powerful James Webb Space Telescope (JWST), researchers set out to capture the weather on a pair of brown dwarfs -- cosmic bodies that are bigger than planets but smaller than stars.

JWST unveils stunning ejecta and CO structures in Cassiopeia A's young supernova

Science Daily - Mon, 07/15/2024 - 1:58pm
Researchers announced the latest findings from the James Webb Space Telescope (JWST) of the supernova remnant, Cassiopeia A (Cas A). These observations of the youngest known core collapse supernova in the Milky Way provide insights into the conditions that lead to the formation and destruction of molecules and dust within supernova ejecta. The study's findings change our understanding of dust formation in the early universe in the galaxies detected by JWST 300 million years after the Big Bang.

Cosmic wrestling match

Science Daily - Mon, 07/15/2024 - 1:53pm
Our universe is around 13.8 billion years old. Over the vastness of this time, the tiniest of initial asymmetries have grown into the large-scale structures we can see through our telescopes in the night sky: galaxies like our own Milky Way, clusters of galaxies, and even larger aggregations of matter or filaments of gas and dust. How quickly this growth takes place depends, at least in today's universe, on a sort of wrestling match between natural forces: Can dark matter, which holds everything together through its gravity and attracts additional matter, hold its own against dark energy, which pushes the universe ever further apart?

<p><a href="https://apod.nasa.gov/apod

APOD - Mon, 07/15/2024 - 9:07am

The galaxy was never in danger. The galaxy was never in danger.


Solar System Family Portrait

APOD - Sun, 07/14/2024 - 9:07am

In 1990, cruising four billion miles from the Sun, the In 1990, cruising four billion miles from the Sun, the


Jones Emberson 1

APOD - Sun, 07/14/2024 - 9:07am

Planetary nebula Planetary nebula


Vivid portrait of interacting galaxies marks Webb's second anniversary

Science Daily - Fri, 07/12/2024 - 10:21pm
Two for two! A duo of interacting galaxies commemorates the second science anniversary of NASA's James Webb Space Telescope, which takes constant observations, including images and highly detailed data known as spectra. Its operations have led to a 'parade' of discoveries by astronomers around the world.

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