Proxima Centauri is an M dwarf approximately 15,000 AU from the Alpha Centauri binary, comoving and likely in a loosely bound orbit. Dynamic simulations show this configuration can form from […]
Astronomy & Telescopes
Posted inAstrochemistry, Astronomy & Telescopes, Exoplanets, -moons, -comets, Press Release
First Sighting Of A Water Snow Line Around A Young Star
Young stars are often surrounded by dense, rotating discs of gas and dust, known as protoplanetary discs, from which planets are born. The heat from a typical young solar-type star […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Fomalhaut, Press Release, tau Ceti
ALMA Observations of the Debris Disk of Solar Analogue Tau Ceti
We present 1.3 mm observations of the Sun-like star τ Ceti with the Atacama Large Millimeter/submillimeter Array (ALMA) that probe angular scales of ∼1” (4 AU). This first interferometric image […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Press Release
Investigating The Free-floating Planet Mass by Euclid Observations
The detection of anomalies in gravitational microlensing events is nowadays one of the main goals among the microlensing community. In the case of single-lens events, these anomalies can be caused […]
Posted inAstronomy & Telescopes, Habitable Zones, Press Release
Terrestrial Effects Of Nearby Supernovae In The Early Pleistocene
Recent results have strongly confirmed that multiple supernovae happened at distances ~100 pc consisting of two main events: one at 1.7 to 3.2 million years ago, and the other at […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Press Release
Debris Disks and the Search for Life in the Universe
Circumstellar debris disks are the extrasolar analogues of the asteroid belt and the Kuiper belt. They consist of comets and leftover planetesimals that continuously collide and produce circumstellar dust that […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Press Release
Hiding in the Sunshine: The Search for Other Earths
We humans might not be the only ones to ponder our place in the universe. If intelligent aliens do roam the cosmos, they too might ask a question that has […]
Posted inAstronomy & Telescopes, Press Release, SETI & Technosignatures
A Search for Brief Optical Flashes Associated with the SETI Target KIC 846285
The F-type star KIC~8462852 has recently been identified as an exceptional target for SETI (search for extraterrestrial intelligence) observations. We describe an analysis methodology for optical SETI, which we have […]
Posted inAstronomy & Telescopes, Press Release
Next Generation Very Large Array: The Cradle of Life
This paper discusses compelling science cases for a future long-baseline interferometer operating at millimeter and centimeter wavelengths, like the proposed Next Generation Vary Large Array (ngVLA). We report on the […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Press Release
Space Telescope Design to Directly Image the Habitable Zone of Alpha Centauri
The scientific interest in directly image and identifying Earth-like planets within the Habitable Zone (HZ) around nearby stars is driving the design of specialized direct imaging mission such as ACESAT, […]