5 天之前 · Lee esta nota de prensa en español aquí.. Studies of rock and dust from asteroid Bennu delivered to Earth by NASA’s OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification and Security–Regolith Explorer) spacecraft have revealed molecules that, on our planet, are key to life, as well as a history of saltwater that could have served as the “broth” for these compounds to ...

4 天之前 · Bennu is a carbon-rich space rock known as a rubble pile asteroid. Scientists believe Bennu was once part of a larger “parent” asteroid that lost a few pieces due to an impact. Then, those ...

4 天之前 · The asteroid provides clues to how the building blocks of life on Earth may have been seeded. ... CI chondrites are rich in clay and formed when ice melted in an ancient asteroid, altering the rock. They are also rich in prebiotic organic molecules. Some of these types of molecules are the building blocks for life.

4 天之前 · Researchers say there’s a 1.3 percent chance that the space rock 2024 YR4 could strike our planet — but not until December 2032. ... A 130-foot asteroid is comparable to the Tunguska impactor, ...

5 天之前 · For instance, the first-ever space-rock-sample-return mission was performed by Japan's aerospace agency, JAXA, which delivered about 5 grams (0.2 ounces) of material from the asteroid Ryugu to ...

5 天之前 · A new analysis of samples from the asteroid Bennu, NASA’s first asteroid sample captured in space and delivered to Earth, reveals that evaporated water left a briny broth where salts and minerals allowed the elemental ingredients of life to intermingle and create more complex structures. The discovery suggests that extraterrestrial brines provided a crucial setting for the development of ...

5 天之前 · The chemical building blocks of life have been found in the grainy dust of an asteroid called Bennu, an analysis reveals. Samples of the space rock, which were scooped up by a Nasa spacecraft and ...

4 天之前 · This figure illustrates key molecules and minerals discovered in samples of near-Earth asteroid (101955) Bennu, which were delivered to Earth by NASA’s OSIRIS-REx mission in September 2023.

4 天之前 · The scientists concluded that the asteroid was a relic of a much bigger object — a mix of rock and ice that measured perhaps 60 miles wide. It formed in the outer solar system, beyond the orbit ...

4 天之前 · Biggest-ever haul of asteroid dust and rock returns to Earth. Results from those missions showed a variety of organics and other carbon-rich compounds, based on a few grams of asteroid material.