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An international team of astronomers reports the discovery of a new mini-Neptune exoplanet orbiting a nearby star. The newfound alien world, designated TOI-4438 b is about 2.5 times larger than the Earth. The finding was detailed in a paper published March 14 on the pre-print server arXiv.

Using observations made with an array of thousands of particle detectors, researchers have uncovered an important clue about cosmic rays that originate from outside of our Galaxy.

Sand ripples are fascinating. They are symmetrical, yet wind — which causes them — is very much not. Furthermore, they can be found on Mars and on Earth. They would be even more fascinating if the same effect found on Mars could be found here on Earth as well. What if one unified theory could explain their formation on two different planets of our solar system?

That is what Ben-Gurion University of the Negev physicist Prof.

Hezi Yizhaq and Prof. Itzhak Katra and their colleagues from Denmark, Germany, Italy, China, and the US contend in a cover article published in Nature Geoscience.

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Dr. Fan Liu: “Thanks to this very high precision analysis, we can see chemical differences between the twins. This provides very strong evidence that one of the stars has swallowed planets or planetary material and changed its composition.”

Can stars eat planets? This is what a recent study published in Nature hopes to address as a team of international researchers led by ASTRO 3D researchers investigated how some pairs of twin stars possess different compositions, which contradicts longstanding theories that they should possess similar compositions, hence the same twin stars. However, astronomers now hypothesize the compositional differences could be due to one of the twin stars devouring planets that orbit them. This study holds the potential to help astronomers better understand the formation and evolution of planetary systems and the mechanisms behind them, as well.

For the study, the team used a combination of the 6.5-meter Magellan Telescope, the European Southern Observatory’s Very Large Telescope, and the 10-meter Keck Telescope to collect data on 91 twin stars to ascertain their chemical compositions, and specifically the similarity of their compositions. In the end, the team discovered that approximately eight percent (7−8 twin stars) exhibited differences in their compositions, with the team hypothesizing that this was due to one of the stars ingesting one of their orbiting planets. Additionally, they found that the differing pairs were all main sequence stars, meaning they’re average-aged and conducting their fusion at their full potential. For context, our Sun is a main sequence star.

Continue reading “Planetary Ingestion Unveiled: Twin Stars Devouring Planets Revealed” »

“For the first time we have shown that even a tiny fraction of cellular material could be identified by a mass spectrometer onboard a spacecraft,” said Dr. Fabian Klenner.

How will we find life on Jupiter’s icy moon, Europa, and Saturn’s icy moon, Enceladus? This is what a recent study published in Science Advances hopes to address as a team of international researchers investigate how ice grains that are discharged from the active plumes of these small moons could possess enough organic material for life to exist. This study holds the potential to help astrobiologists develop the necessary instruments and methods to find life on these small moons, specifically with NASA’s Europa Clipper scheduled to launch this October, whose goal will be to investigate Europa’s habitability potential.

Artist’s illustration of Saturn’s moon, Enceladus, seen here upside down as the plumes are on the south pole. (Credit: NASA/JPL-Caltech)

Continue reading “Exploring Extraterrestrial Oceans: Ice-Grains as Potential Carriers of Life” »

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This video explores the future of Mars colonization and terraforming from 2030 to 3000. Watch this next video about the 10 stages of AI: • The 10 Stages of Artificial Intelligence.
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SOURCES:
• https://scitechdaily.com/mars-settlem…
• https://www.news18.com/news/buzz/elon…
• https://2050.earth/predictions/a-sust…
• https://www.businessinsider.com/elon–…
• https://www.inverse.com/innovation/sp…
• https://www.inverse.com/article/54358…
• https://futurism.com/the-byte/elon-mu…
• https://www.lpi.usra.edu/V2050/presen…
• https://www.mars-one.com.
• https://en.wikipedia.org/wiki/Coloniz…
• https://www.nationalgeographic.org/hi…
• https://www.spacex.com/human-spacefli…
• https://ntrs.nasa.gov/api/citations/2…
• https://www.space.com/how-feed-one-mi…
• https://www.usatoday.com/in-depth/new…
• https://futuretimeline.net/
• https://eatlikeamartian.org/
• / realistically_speaking_when_do_you_think_w…
• https://www.astronomy.com/space-explo…

Continue reading “Future of Mars Colonization (2030 — 3000)” »

What to watch for

Those hoping to see the nova display should look for the constellation Corona Borealis, or “Northern Crown,” a small arc near the Bootes and Hercules constellations, NASA says.

“This is where the outburst will appear as a ‘new’ bright star,” it adds.