2025 Exoplanet Archive News

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This page contains a summary of the current calendar year's Exoplanet Archive news. For other news archives by year, see the 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, and 2011-12 archives.

For a compilation of periodic tips that have appeared in past news items, see the Tip Archive.

To view only the most recently added planets and updated parameters (default and non-default), see this pre-filtered and pre-sorted interactive table.

April 24, 2025

Data for 15 Planets and Spectra for 6, Including K2-18 b

This week's release features new spectra from JWST for temperate sub-Neptune K2-18 b, which made news headlines this week (as well as in October 2023). Read the discovery paper and then head to our Atmospheric Spectroscopy table to take a look at the data and compare with your own models!

The other planets with new spectra are GJ 504 b, HR 8799 c, d, & e, and HR 2562 b.

The nine new planets are WASP-102 b (TOI-6170), WASP-116 b (TOI-4672), WASP-149 b (TOI-6101), WASP-154 b (TOI-5288), WASP-155 b (TOI-6135), WASP-188 b (TOI-5190), WASP-194 b (TOI-3791), WASP-195 b (TOI-4056), and WASP-197 b (TOI-5385). There are also new parameters for GJ 504 b and HR 2562 b.

Click on any planet name to go directly to its System Overview page, or browse the Planetary Systems and Planetary Systems Composite Data tables.

News panel image credit: NASA, CSA, ESA, J. Olmsted (STScI), Science: N. Madhusudhan (Cambridge University)

April 17, 2025

Seven New Planets, Including a Neighboring sub-Neptune

This week's seven new planets bump our planet count to 5,876, and feature sub-Neptune Gl 410 b located only 40 light-years away.

The other planets are G 192-15 b & c, G 261-6 b, G 268-110 b, Kepler-279 e, and Kepler-289 e. There are also new parameters for 55 Cnc e, TOI-2202 b, WASP-106 b, and WASP-131 b, and an additional 145 planets from Ofir et al. 2025.

Click on the planet names to go directly to their System Overview pages, or browse the Planetary Systems and Planetary Systems Composite Data tables.



April 10, 2025

Two New Microlensing Planets and Water in the Atmosphere of Hot Jupiter WASP-52 b!

This week's release includes KMT-2019-BLG-0578L b and KMT-2021-BLG-0736L b discovered through reanalysis of archival microlensing data, and a JWST spectrum of WASP-52 b showing water and helium in the atmosphere after careful consideration of stellar contamination. Learn more about the microlensing planets in the discovery paper; details on WASP-52 b are described in this paper. Click on the planet names to go directly to their System Overview page, or browse the Planetary Systems and Planetary Systems Composite Data tables.

We've also added Spitzer transmission and eclipse spectroscopy measurements of WASP-19 b and HAT-P-7 b to the Atmospheric Spectroscopy table.

March 26, 2025

A Planet Disintegrating Around Its Bright Host Star

One of this week's five planets is orbiting its star so closely that it's disintegrating in the intense heat. BD+05 4868 A b's demise is expected to happen over the next two million years, and because the host is a bright TESS star, researchers have an opportunity to observe the end of the planet's life. Check out this Astrobites article and the discovery paper for details.

The other new planets are TOI-1266 d, LP 261-75 b, ZTF J1230-2655 b, and ZTF J1828+2308 b. We've also added new parameters for TOI-640 b, TOI-677 b, and GJ 436 b. Click on the planet names to go directly to their System Overview page, or browse the Planetary Systems and Planetary Systems Composite Data tables.

We've also added new JWST spectra for GJ 436 b to the Atmospheric Spectroscopy table, bringing our spectral holdings for this planet to 10 spectra from three space observatories!

News panel image credit: JPL-Caltech/NASA

March 20, 2025

Real and Synthetic Exoplanet Data

This week's release contains data for six real planets, and over 3 million spectra for simulated rocky planets.

Frontier Development Labs INARA Dataset

One of the teams from the 2018 FDL Astrobiology challenge has published a paper on their set of over 3 million synthetic rocky planet spectra, all of which are available on the Exoplanet Archive.

The spectra are modeled after initial Habitable Worlds Observatory-like design criteria, and provide a training set for machine-learning algorithms to efficiently perform atmospheric retrievals on real-life spectral data. The dataset joins the PyATMOS dataset, a grid of model atmospheres produced by a second team from the same FDL challenge.

Access the INARA data by selecting Frontier Development Labs Datasets from our website's Data pull-down menu, or use this direct link.

Six New Planets

This week's six new planets feature a super-Earth and a sub-Neptune found orbiting TOI-1453—a planetary system found 250 light-years away in the Draco constellation. Planet c is one of the least-dense sub-Neptunes ever discovered. Read the Star Institute media release and the discovery paper for details.

The other new planets are GJ 1289 b, TOI-4364 b, TOI-5143 c, and TOI-7041 b. There are also new parameters for Qatar-6 b and KELT-10 b. Click on their names to go directly to their System Overview page, or browse the Planetary Systems and Planetary Systems Composite Data tables.



March 13, 2025

Seven New Planets, Including Three More Around Barnard's Star and super-Earth GJ 3998 d!

This week's seven new planets include three found orbiting Barnard's Star, the closest single-star system to Earth. Read the University of Chicago media release and the discovery paper for details and then check out the Barnard's Star System Overview page for data on the star and its four planets. (The new planets are Barnard c, d, & e.)

Another newsy addition is GJ 3998 d, a super-Earth in the habitable zone of a nearby red dwarf, making the planet an excellent candidate for atmospheric studies. More details are in the IAC media release and the discovery paper.

The other new planets are KOI-1843.03, TOI-512 b, and TOI-2015 c. There are also new parameters for BD+00 444 b (TOI-2443 b). Access all of this week's new data in the system overview pages and in the Planetary Systems and Planetary Systems Composite Data tables.

News panel image credit: International Gemini Observatory/NOIRLab/NSF/AURA/R. Proctor/J. Pollard



March 6, 2025

Thank You, Radial Velocity!

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 in its star's habitable zone. Also, Jovian GJ 2126 b—which has a very eccentric orbit around an M0 star—is an RV-only discovery.

Learn more about the TOI confirmations in Tala Pinto et al. and Heidari et al.; details on GJ 2126 b are described in a separate paper.

The other new planets are: TOI-2295 b & c, TOI-2328 b, TOI-2537 c, TOI-3837 b, TOI-5027 b, TOI-5110 b, and TOI-6628 b.

Click on the planet names view their System Overview pages, or browse all system parameters in the archive (including this week's new sets) with the Planetary Systems and Planetary Systems Composite Data tables.

News panel image credit: Fig. 20 of Heidari et al. 2025

February 27, 2025

Five New Planets, Including an Extremely Close Orbiter, and an L 98-95 Spectrum

We've added five new planets and one spectrum, as well as a number of parameter updates.

One of the planets is Gl 725 A b which, at a distance of 11.4 light years, is the seventh closest known orbiting planet.

In addition we have released KOBE-1 b and c, the first planets from the KOBE project.

The last two planets are GJ 341 b, an Earth-sized planet, and K2-99 c. Click on their names to go directly to their System Overview pages, or browse all system parameters in the archive (including this week's new sets) with the Planetary Systems and Planetary Systems Composite Data tables.

We have included parameter updates for 14 planets in four systems:

There is also a new spectrum for the L 98-59 system, where volcanic activity may be driving atmosphere creation! The new spectrum can be found in the Atmospheric Spectroscopy Table.

News panel image credit: J. Lillo-Box



February 14, 2025

Two New Gaia Planets and TRAPPIST-1 Spectrum!

We've added Gaia-4 b and Gaia-5 b, a super-Jupiter and a brown dwarf that orbit low-mass stars—a scenario considered extremely rare and a discovery made possible by Gaia astrometry. Learn more in the media release and discovery paper.

There are also new spectra for five planets—including a spectrum from the TRAPPIST-1 system! Check out the Atmospheric Spectroscopy Table for spectra from L 98-59 c, HD 95086 b, WASP-19 b, and TRAPPIST-1 b. The Observatoire de Paris has also issued a media release on the TRAPPIST-1 b spectroscopy.

News panel image credit: ESA/Gaia/DPAC/M. Marcussen



January 31, 2025

Three Planets Added, Including a Nearby Super-Earth Orbiting a Sun-like Star

This week's release has three new planets and one spectrum, as well as one planet demoted to false positive planet.

One of the new planets is in the HD 20794 system located just 20 light-years from Earth. HD 20794 f (published as planet d by the discovery paper) has an eccentric, 647-day orbit that crosses into the host star's habitable zone. Learn more in the media release.

The same paper includes a published refutation of HD 20794 c, which the archive has demoted to False Positive Planet. The object's new status is reflected on its System Overview page, which will continue to serve its data.

The other new planets are WASP-132 d and K2-360 c. Click on their names to go directly to their System Overview pages, or browse all system parameters in the archive (including this week's new sets) with the Planetary Systems and Planetary Systems Composite Data tables.

We've also added a new spectrum for WASP-17 b to our Atmospheric Spectroscopy Table. (Pro Tip: You can access the table from the planet's Planetary Parameters section of its System Overview page.)

News panel image credit: Gabriel Pérez (IAC)



January 24, 2025

Jupiters, Jupiters, come get your Jupiters!

This week's release has 11 new planets. They are HD 101581 b, HD 101581 c, TOI-6038 A b, HD 73344 c, HD 73344 d, TOI-5108 b, TOI-5786 b, TOI-1295 b, TOI-2580 b, TOI-6016 b and TOI-6130 b. Click on a planet name to view its System Overview page, or use either the Planetary Systems table or its companion the Planetary Systems Composite Data table to view, filter, sort, and download data.



January 14, 2025

New Year, New Planets

In our first release of 2025, we are adding 8 new planets, multiple spectra for 1 planet, and updated parameters for 2 planets.

The new planets are TOI-6383 A b, TOI-5688 A b, TOI-4504 b, c & d, KMT-2024-BLG-1044L b, KMT-2022-BLG-2286L b, and KMT-2023-BLG-1743L b.

The systems with updated parameters are HD 113337 c and HD 38529 c.

The new data can be accessed on the System Overview pages, or browse the updates in the Planetary Systems and Planetary Systems Composite Data tables.

We have added newly published JWST spectra for the hot super-Earth L 168-9 b, which can be accessed via the Atmospheric Spectroscopy Table.