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748 articles trouvés

Youcef Sellam

18/04/2025 Lecture 4 min

Source de l'article : SETI Institute

When we imagine the search for life on Mars, we often picture high-tech rovers scanning dusty landscapes or orbiters analyzing strange rock formations from above. But what if the key to discovering ancient life isn’t in the vast Martian deserts – what if it’s hidden inside crystals?

Biosignatures on K2-18 b?

18/04/2025 Lecture 2 min

Source de l'article : SETI Institute

Biosignatures On K2-18 B?

Madhusudhan et al. just reported ~3 sigma detection of dimethyl sulfide (DMS) or dimethyl disulfide (DMDS) in the atmosphere of K2-18 b in the Astrophysical Journal Letters. The claim is intriguing, as these gases can be associated with biological activity. On the other hand, the signal is modest, ambiguous, and potentially explainable as the result of noise or systematic error. Moreover, abiotic sources for these compounds do exist, and even if they are low-yield and short-lived, they cannot y…

EVER WONDER WHY SOME METEOR SHOWERS ARE SO UNPREDICTABLE?

16/04/2025 Lecture 6 min

Source de l'article : SETI Institute

Ever Wonder Why Some Meteor Showers Are So Unpredictable?

April 16, 2025, Mountain View, CA -- Why do comets and their meteoroid streams weave in and out of Earth's orbit and their orbits disperse over time? In a paper published online in the journal Icarus this week, two SETI Institute researchers show that this is not due to the random pull of the planets, but rather the kick they receive from a moving Sun.

The quaint UK market town where UFO sightings and a mysterious death haunt locals

12/04/2025 Lecture 5 min

Source de l'article : The Mirror

The Quaint Uk Market Town Where Ufo Sightings And A Mysterious Death Haunt Locals

The small market town of Todmorden, in the Pennines, has become infamous in recent years for the number of UFO sightings that have been reported in the area

Why Is Mars Red?

11/04/2025 Lecture 3 min

Source de l'article : SETI Institute

Why Is Mars Red?

We all know Mars is called “The Red Planet,” but have you ever stopped to wonder—why is it red?

SETI Institute in the News: March Roundup

10/04/2025 Lecture 6 min

Source de l'article : SETI Institute

Seti Institute In The News: March Roundup

What if we find nothing in our search for life beyond Earth?

07/04/2025 Lecture 7 min

Source de l'article : SETI Institute

What If We Find Nothing In Our Search For Life Beyond Earth?

April 7, 2025, Mountain View, CA -- What if we spend decades building advanced telescopes to search for life on other planets and come up empty-handed? A recent study led by ETH Zurich researchers including corresponding author and SETI Institute affiliate, Dr. Daniel Angerhausen, tackled this question, exploring what we can learn about life in the universe—even if we don't detect signs of life or habitability. Using advanced statistical modeling, the research team sought to explore how many ex…

The Climate Chronicles

04/04/2025 Lecture 4 min

Source de l'article : SETI Institute

The Climate Chronicles

To spread awareness that “climate change isn’t just an environmental issue; it’s a human story woven into the fabric of our civilization’s rise and fall,” Georgetown University historian Professor Dagomar Degroot recognized the need for a dynamic medium, leading to the creation of the podcast, The Climate Chronicles. Understanding our future requires a deep understanding of our past, and that’s exactly what The Climate Chronicles offers — a detailed narrative of Earth’s climate history, to

A Swiss Army Knife for the Sun

01/04/2025 Lecture 2 min

Source de l'article : SETI Institute

A Swiss Army Knife For The Sun

An international team of researchers from the SETI Institute, Lockheed Martin Solar and Astrophysics Lab (LMSAL), Bay Area Environmental Research Institute (BAERI), and the University of Geneva wanted to build a more accurate and efficient computer model to understand the Sun’s atmosphere and better predict how it affects Earth and its technology. This effort was initiated by Quentin Wargnier, who moved to the start-up Green14 as an engineer responsible for simulations. The team developed a gro…

SETI Institute’s 2025 Drake Award Recognizes Origins of Life Research

01/04/2025 Lecture 6 min

Source de l'article : SETI Institute

Seti Institute’S 2025 Drake Award Recognizes Origins Of Life Research

April 1, 2025, Mountain View, CA -- The SETI Institute announced today two recipients for the 2025 Drake Award: Dr. David Deamer (University of California, Santa Cruz) and Dr. John Baross (University of Washington, Seattle). Deamer and Baross are known for their pioneering work in astrobiology, focused on understanding the origins of life. However, each approaches the question from a different perspective. Deamer, a biomolecular engineer who focuses on membranes and RNA formation in shallow wat…

In the Pinball World of Asteroids

31/03/2025 Lecture 4 min

Source de l'article : SETI Institute

In The Pinball World Of Asteroids

March 31, 2025, Mountain View, CA -- In April 2019, rare primitive meteorites fell near the town of Aguas Zarcas in northern Costa Rica. In an article published online in the journal Meteoritics & Planetary Science, an international team of researchers describe the circumstances of the fall and show that mudball meteorites are not necessarily weak.

Exploring HD 20794 d

28/03/2025 Lecture 3 min

Source de l'article : SETI Institute

Exploring Hd 20794 D

The confirmed discovery of exoplanets revolutionized our understanding of the universe. Among the thousands of confirmed exoplanets, HD 20794 d in particular, recently attracted attention for a unique characteristic – an eccentric orbit that moves in and out of the parent star’s habitable zone. Astronomers are studying this planet to gain insights into habitability beyond Earth.

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