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Exoplanets and the Search for Life
Exoplanets and the Search for Life in Space Science: the news, the names and what changed.
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Where does a planet end and a star begin? Webb found a free-floating brown dwarf only about twice Jupiter’s mass, surrounded by a disk of planet-forming material — an object with a planet’s mass that appears to have formed like a star.
5+ hour, 9+ min ago (1201+ words) Webb spectroscopy identifies a roughly two-Jupiter-mass IC 348 member with infrared excess from a disk, while spatial evidence favors star-like formation over planetary ejection....
During the Solar System’s first million years, its earliest outer worlds formed from material that was up to 92 percent heat-forged rock, while gas flowing through the young system filtered out much of the surrounding ice-rich dust.
18+ hour, 54+ min ago (1245+ words) Two chemical tracers in carbonaceous iron meteorites indicate that the earliest outer Solar System planetesimals contained only 8 to 17 percent fine matrix, extending aerodynamic sorting to the opening era of planet formation....
The Signal That Knew Earth Was Listening
16+ hour, 20+ min ago (311+ words) The telescope detected the signal at 3:17 in the morning. At first, it looked ordinary. A narrow radio transmission — weak, almost entirely lost beneath …...
NASA budgeted 200 kilograms of fuel for Roman’s first course correction, but the telescope used only 18. Combined with extra fuel loaded before launch and further expected savings, that could stretch its 10-year fuel plan to at least 22 years.
22+ hour, 7+ min ago (1241+ words) Roman's first correction used nine percent of its 200-kilogram allocation. NASA now projects enough propellant for at least 22 years, while stressing that later savings remain conditional....
Planets Scattering Planets in Warm Jupiter Systems
1+ day, 23+ hour ago (217+ words) While our solar system sports one Jupiter-like planet, exoplanet discoveries have revealed that giant planets come in a few different forms in systems with varying architectures. A recent study has explored how the mass–eccentricity relationship in warm Jupiters is…...
Could aliens ever visit Earth? An aerospace scientist unpacks the challenges of interstellar spaceflight
1+ day, 20+ hour ago (1294+ words) That congressional hearing marked the beginning of a cultural shift in which UFO reports are increasingly treated as a matter for serious discussion, both within the government and the scientific community. The Pentagon released over 200 previously classified UFO files in…...
Did liquid water once exist in the outer solar system? Study of Neptune's moons provides clue
1+ day, 15+ hour ago (805+ words) starlust.org Did liquid water once exist in the outer solar system? Study of Neptune's moons provides clue Scientists have found evidence that liquid water existed in the Neptunian system's past. Using information gathered by the James Webb Space Telescope…...
The 'Alien' May Already Be Here
2+ day, 2+ hour ago (597+ words) Posted September 18, 2026 | Reviewed by Jessica Schrader We’ve been searching for aliens for a very long time, looking up at the sky for some sign that we're not alone. In more modern times, we’ve wondered whether an intelligence from somewhere else…...