Tag

Tess

All articles tagged with #tess

space5 days ago•71 min saved

TESS Unveils Its Most Complete All-Sky Map of Exoplanets Yet

NASA's Transiting Exoplanet Survey Satellite (TESS) released its most complete all-sky mosaic, assembled from 96 sectors observed between 2018 and September 2025, mapping about 6,000 potential exoplanets (roughly 679 confirmed and 5,165 candidates). The mosaic highlights the diversity of worlds found, including a recently identified system with a super‑Earth and a tilted, eccentric companion and evidence of planet–planet collisions, marking the conclusion of TESS's second mission extension in Sept 2025.

via Space|

#all-sky #astronomy #exoplanets

science13 days ago•3 min saved

TESS Unveils the Most Complete All-Sky View of Exoplanets

NASA’s Transiting Exoplanet Survey Satellite (TESS) has released its most complete all-sky mosaic (96 sectors from 2018–Sept. 2025), showing about 679 confirmed exoplanets and 5,165 candidates; the image traces the Milky Way’s plane and demonstrates TESS’s ongoing success in finding diverse worlds, including possible habitable-zone planets, while total exoplanet confirmations across missions exceed 6,270.

via NASA Science (.gov)|

#all-sky-mosaic #exoplanet-candidates #exoplanets

science13 days ago•16 min saved

AI-led scan hints at 10,000 hidden exoplanet candidates

A study using artificial intelligence on NASA’s TESS data identifies about 10,000 new exoplanet candidates beyond our solar system. While these are unconfirmed, the approach could speed up the search for potentially habitable worlds, adding to the thousands of known planets and thousands more awaiting verification.

via The Daily Beast|

#ai #arxiv #exoplanets

space22 days ago•4 min saved

TESS Finds 27 Hidden Worlds by Timing Eclipses in Binary Stars

NASA’s TESS analyzed 1,590 eclipsing binaries and found 27 candidate exoplanets by timing the stars’ mutual eclipses, a method that can detect planets even when they don’t transit. The candidates range from ~12 Earth masses to ~10 Jupiter masses, with confirmation needing follow-up velocity measurements; the work expands planet searches in binary systems beyond the standard transit approach.

via NASA Science (.gov)|

#binary-stars #eclipsing-binaries #exoplanets

science23 days ago•32 min saved

Twin-sun worlds: 27 circumbinary planet candidates spotted in latest survey

A new survey using data from NASA’s TESS telescope identified 27 strong circumbinary planet candidates orbiting binary star systems (out of 1,590 binaries), suggesting there could be thousands of such planets hiding in the galaxy. Planets are inferred from variations in the stars’ eclipse timings, and while the candidates range from Neptune-sized to up to Jupiter-sized, they require future observations to confirm their status.

via Yahoo News Canada|

#binary-stars #circumbinary-planets #exoplanets

science23 days ago•3 min saved

Two-Sun Worlds: 27 Candidate Circumbinary Planets Uncovered

Astronomers using apsidal precession timing of eclipsing binary stars and NASA’s TESS data identified 27 new candidate planets that would orbit two stars. Distances range from 650 to 18,000 light-years, adding to about 18 previously known circumbinary planets. Follow-up spectral analysis is needed to confirm whether these bodies are planets (likely Neptune-sized to ~10 Jupiter masses) or brown dwarfs/stars. The study was published in Monthly Notices of the Royal Astronomical Society.

via The Guardian|

#astronomy #binary-stars #circumbinary-planets

space24 days ago•60 min saved

AI flags 11,554 exoplanet candidates, potentially tripling known alien worlds

A new arXiv study uses a machine‑learning algorithm to sift through 83,717,159 stars observed by NASA’s TESS, uncovering 11,554 exoplanet candidates (10,052 of which are newly identified) with orbital periods from 0.5 to 27 days. Researchers even confirmed a hot Jupiter, TIC 183374187 b, with the Magellan telescope, validating the method. If these candidates are verified by independent surveys, the total number of known exoplanets could rise to about 18,000, nearly triple the current count. Most candidates lie around very faint stars and require extensive follow‑up; the work posted on arXiv on April 20 has not yet been peer‑reviewed. While many candidates are unlikely to host life due to their close orbits, this study dramatically expands the census of exoplanets and demonstrates the power of machine‑learning in astronomy.

via Live Science|

#astronomy #exoplanets #machine-learning

science28 days ago•4 min saved

TESS Data Reanalysis Uncovers 11,554 Exoplanet Candidates in a Single Sweep

A reanalysis of NASA's Transiting Exoplanet Survey Satellite (TESS) data uncovers 11,554 exoplanet candidates (11,554 total; 10,091 new), the largest batch ever identified from a single dataset. The candidates extend detections up to about 6,800 light-years toward the Milky Way's center, with many likely hot Jupiters. About 50% of detections may be false positives, so an estimated 3,000–5,000 could be real planets. While not all will be confirmed, the large sample enables broad comparisons of planetary systems and deeper insights into planet formation.

via The Daily Galaxy|

#astronomy #data-analysis #exoplanets

science1 month ago•6 min saved

TOI-201: A Chaotic Exoplanet System Rewrites Planet-Formation Rules

NASA’s TESS data reveal the TOI-201 planetary system, where three bodies have misaligned orbits and strong gravitational interactions that actively reshape their motion. One planet (TOI-201b) shows significant transit timing variations, and an outer ≈15 Jupiter-mass companion influences the system’s dynamics, indicating ongoing orbital reshaping rather than a settled, orderly configuration. The discovery, aided by Antarctica-based long-duration observations, provides a rare glimpse of early planetary evolution and challenges the idea that most systems form in calm, coplanar arrangements.

via The Daily Galaxy|

#exoplanets #orbital-dynamics #science

space1 month ago•74 min saved

TOI-201: A wildly different exoplanet system rewrites planetary rules

NASA’s TESS, with help from the Antarctic ASTEP observatory, found TOI-201 a star about 370 light-years away hosting three very different planets. The system includes a rocky super-Earth (~6 Earth masses) with a 5.8‑day year, plus two gas giants—TOI-201b (about half Jupiter mass, 53‑day orbit) and a much more massive companion (~16 Jupiter masses, ~2,883‑day or ~7.9‑year orbit). The outer planet’s highly inclined, eccentric orbit perturbs the inner planets, causing real-time changes in orbital orientation and transit timing. This results in transits that shift over time and, in about 200 years, may no longer line up to transit the star. The configuration is unlike the common “peas in a pod” pattern and provides new clues about how planetary systems reorganize after formation; the findings were published in Science on April 15.

via Space|

#exoplanets #orbital-dynamics #space

science1 month ago•16 min saved

TESS pinpoints the birth of a black hole outburst with record timing

Astronomers using NASA’s TESS space telescope captured the earliest optical rise of a black hole outburst in AT 2019wey, pinpointing the onset to late November 2019 and showing the eruption begins near the black hole before brightening the outer disk. The continuous 27-day monitoring allowed an unprecedented precise timing, supporting an inside-out outburst scenario and helping constrain the trigger mechanisms, with the event remaining bright for years and underscoring the value of wide-field missions for catching eruptions at birth; the findings appear in Research Notes of the AAS.

via Earth.com|

#astronomy #black-hole #outburst

space2 months ago•6 min saved

Twice-Earth-Sized Hot Sub-Neptune TOI-5734 b Uncovered

An international team using TESS and HARPS-N confirmed TOI-5734 b, a hot sub-Neptune about 2.1 Earth radii and 9.1 Earth masses orbiting the young K-dwarf TOI-5734 every 6.18 days at roughly 0.06 AU (about 106 light-years away). With an equilibrium temperature around 688 K, the planet lies near the upper edge of the radius valley and is likely rocky with a largely stripped atmosphere, though a water-world scenario cannot be ruled out. The discovery, described in a February 2026 arXiv paper (DOI 10.48550/arxiv.2602.18108), leveraged three TESS sectors and HARPS-N data to illuminate atmospheric loss and inward migration in close-in exoplanets.

via The Daily Galaxy|

#exoplanets #harps-n #space

space-and-spaceflight2 months ago•16 min saved

Astronomers Spot the Tiniest Packed Quadruple Star System

Using NASA’s TESS data from 2019–2024, astronomers identified TIC 120362137 as the most compact 3+1 quadruple star system: an eclipsing binary eclipsed by a third star, plus a distant fourth star with a 1,045.5‑day orbit—the shortest outer period observed in such a configuration. The inner three stars are packed within Mercury’s orbital distance while the outer companion sits near Jupiter’s orbit. The team’s models suggest the inner trio will merge into a white dwarf in ~300 million years, leaving a double white-dwarf system with a ~44‑day orbit.

via Gizmodo|

#binary-stars #quadruple-star-system #space-and-spaceflight

astronomy2 months ago•55 min saved

Record-breaking four-star system packs inner trio inside Mercury’s orbit

Astronomers using NASA’s TESS have found TIC 120362137, the most compact known 3+1 quadruple star system: a tightly bound inner triple is orbited by a distant fourth star, with the outer companion about the distance of Jupiter from the Sun, while the inner trio would fit inside Mercury’s orbit. This rare architecture helps scientists study how such systems form and stay stable, and simulations predict the system will eventually merge into two white dwarfs in a ~44-day orbit, a scenario described in Nature.

via Space|

#31-star-system #astronomy #quadruple-star-system

astronomy3 months ago•6 min saved

Distant Star Hosts a Nearly Five-Jupiter-Mass Gas Giant in a 180-Day Orbit

Astronomers using NASA's TESS have discovered TIC-65910228 b, a gas giant with about 4.8 Jupiter masses and a radius near 1.08 Jupiter radii, orbiting a metal-rich sun-like star 864 light-years away. The planet completes an ~180.5-day orbit at ~0.7 AU, placing it in the warm-Jupiter regime. Follow-up with NGTS, HARPS, and CORALIE confirmed the transit and radial-velocity signals, while atmospheric studies remain challenging but possible with next-generation telescopes. The system may also host moons or rings, making TIC-65910228 b a compelling target for future exploration.

via The Daily Galaxy|

#astronomy #exomoons #exoplanet