NASA Exoplanet Archive Archives

Astronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gaia - Planetary Perspectives, Habitable Zones, Imaging & Spectroscopy, Status Report, Stellar Cartography, Water/Hycean Worlds & Oceanography

A First Order Filter For The Detection of Potentially Habitable Exoplanets

by Keith CowingDecember 3, 2025December 3, 2025

The search for potentially habitable exoplanets is a primary objective in modern astrophysics, yet the vast number of candidates discovered by missions like Kepler and TESS presents a significant challenge […]

We present the discovery by the TESS mission of one transiting Neptune-sized planet, TOI-6223 b and two transiting super-Earths, TOI-1743 b and TOI-5799 b. We validate these planets using a statistical validation method, multi-color light curves and other ancillary observations. astro-ph.EP

Astronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report

TOI-1743 b, TOI-5799 b, TOI-5799 c and TOI-6223 b: TESS Discovery And Validation Of Four Super-Earth To Neptune-sized Planets Around M dwarfs

by Keith CowingSeptember 19, 2025September 19, 2025

We combined TESS and ground-based photometric data to constrain the physical properties of the planets. TOI-6223-b is slightly larger than Neptune (Rp=5.12+0.24−0.25 R⊕) orbiting an early M dwarf in 3.86 […]

Astronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report

The NASA Exoplanet Archive Hits 6,000 Planets

by Keith CowingSeptember 18, 2025September 18, 2025

From sub-Earth-sized planets to hot Jupiters and everything in between, today’s milestone highlights the rapid growth of exoplanet discoveries and their importance to understanding worlds beyond our own.

The number of planets has been growing exponentially for decades. Here we show the decade leading up to 2025, and a projection of the expected yield of exoplanets for the following decade (see Sec. 5.1 for a discussion of the future landscape). -- astro-ph.EP

Astronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report

The NASA Exoplanet Archive and Exoplanet Follow-up Observing Program: Data, Tools, and Usage

by Keith CowingJune 5, 2025June 5, 2025

The NASA Exoplanet Archive and the Exoplanet Follow-up Observing Program service are two widely used resources for the exoplanet community.

An exoplanet -- Grok via Astrobiology.com

Astronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report

NASA Exoplanet Archive Update 6 March 2025

by Keith CowingMarch 7, 2025March 7, 2025

This week’s release was made possible by the radial velocity technique: multiple TOIs were confirmed with radial velocity follow-up. One noteworthy planet from that batch is TOI-2537 b because it partially orbits […]

The [Na/Fe] vs. [Fe/H] abundance plot (Ensemble 4) showing the stars that are most likely to host a planet (green), the known planet hosts (blue), and the stars less likely to host a planet (orange). Histograms are also included that show the [Na/Fe] relative distribution to the right of the scatterplot and [Fe/H] relative distribution at the top. We note the clear sub-solar Na abundances for each experiment’s known and predicted planet hosts (see Section 5). - Small planets -- astro-ph.EP

AI - Data - Apps - Cybernetics, Astronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report, Stellar Cartography

Utilizing Machine Learning to Predict Host Stars and the Key Elemental Abundances of Small Planets

by Keith CowingMarch 5, 2025

Stars and their associated planets originate from the same cloud of gas and dust, making a star’s elemental composition a valuable indicator for indirectly studying planetary compositions.

AI - Data - Apps - Cybernetics, Astronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report

NASA Exoplanet Archive: Getting CUTE With New Data

by Keith CowingDecember 14, 2024December 14, 2024

The archive has added a new dataset by NASA’s Colorado Ultraviolet Transit Experiment (CUTE)CubeSat. The mission is measuring near-ultraviolet transmission spectroscopy of a dozen Jupiter- and Neptune-sized planets and monitoring […]

Test results when using the complete properties dataset where the 150 test planets are treated as transit observations, with missing mass values. The left-hand plot shows four proposed imputation algorithms alongside the mBM code in TLG2020. The right-hand plot shows the comparison between the observed mass and imputed mass for the mBM code and the kNN×KDE algorithm. The figure legend shows the average error across all 150 plotted planets. The diagonal dashed line marks a perfect correspondence between the observed and imputed values. The distributions of the three planets marked in the right-hand legend are shown below. -- astro-ph.EP

AI - Data - Apps - Cybernetics, Citizen Science / Open Science, Exoplanets, -moons, -comets, Status Report

Estimating Exoplanet Mass Using Machine Learning on Incomplete Datasets

by Keith CowingOctober 11, 2024October 11, 2024

The exoplanet archive is an incredible resource of information on the properties of discovered extrasolar planets, but statistical analysis has been limited by the number of missing values. One of […]

Depiction of all 18 systems that spend at least part of their time within their respective HZs. Empty markers in panel (c) represent actual planetary mass values as opposed to minimum mass values, which are represented by filled in markers. -- The Astrophysical Journal

Astronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Press Release, Stellar Cartography

The Habitability Of F-Type Star Systems

by Keith CowingSeptember 20, 2024September 20, 2024

Physicists at The University of Texas at Arlington have published a study of F-type star systems, in which they explored systems where the planets spend at least part of their […]

Count-up and portion of confirmed single-hosted exoplanets’ habitable zone status per the chosen parameters of this analysis. -- astro-ph.EP

Astronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Status Report, Stellar Cartography

Analysis Of Habitability And Stellar Habitable Zones From Observed Exoplanets

by Keith CowingAugust 20, 2024August 20, 2024

The investigation of exoplanetary habitability is integral to advancing our knowledge of extraterrestrial life potential and detailing the environmental conditions of distant worlds.