Blog

Updates, guides, and science from the S.O.L.A.R.I.S. project

The Radius Gap: A Mysterious Divide in Planet Sizes
Explore the radius gap—the mysterious absence of planets between 1.5-2 Earth radii. Learn how photoevaporation & atmospheric loss shape planetary populations.
Hot Jupiters, Super-Earths, and Mini-Neptunes: The Exoplanet Zoo
Explore the diverse exoplanet types—Hot Jupiters, Super-Earths, and Mini-Neptunes—and discover what citizen science reveals about the galaxy's planetary populations.
The Real Impact of Citizen Science: How Volunteers Change Research
Discover how citizen scientists are reshaping research through major discoveries. From Galaxy Zoo to Planet Hunters, learn the real impact of volunteer science.
Noise Reduction in Space Telescope Data: Cleaning Up Starlight
Explore how TESS space telescope data is cleaned and processed to reveal exoplanets hidden in noise, from SAP to PDCSAP and advanced detrending techniques.
Open Data in Astronomy: How Public Datasets Power Citizen Science
Explore how NASA's open data policy enables citizen scientists to discover exoplanets using MAST archives, Exoplanet Archive, and free tools like lightkurve.
BLS Detection: The Algorithm That Finds Planets in Noise
Discover how Box Least Squares (BLS) detects exoplanets by matching transit shapes in noisy light curves, from grid searching to statistical thresholds.
James Webb Space Telescope and the Future of Exoplanet Science
Discover how JWST's infrared spectroscopy is revolutionizing exoplanet atmospheric analysis and the role citizen science plays in target selection for breakthrough discoveries.
Building a Planet-Finding Pipeline: Data Science Meets Astronomy
Explore the architecture of planet-finding pipelines that detect exoplanets in massive datasets. Learn how S.O.L.A.R.I.S. processes millions of TESS observations with parallel algorithms and automated validation.
Stellar Classification: Understanding the Stars We Search
Learn how OBAFGKM spectral classification, the H-R diagram, and stellar properties shape exoplanet discovery and habitable zone location around distant stars.
NASA's TESS Mission: The Satellite Powering Our Discoveries
Discover how NASA's TESS mission surveys the sky for exoplanets around nearby bright stars, and why citizen science accelerates discoveries from its public data archive.
Earth Similarity Index: Scoring Planets on How Earth-Like They Are
Learn how the Earth Similarity Index scores exoplanets, what ESI ranges mean for habitability, and why this metric has both power and limits.
Equilibrium Temperature: Estimating Exoplanet Surface Conditions
Learn how equilibrium temperature reveals exoplanet surface conditions, its limitations in assessing habitability, and why the greenhouse effect matters.
MCMC Fitting: How We Measure Exoplanet Properties With Precision
Learn how MCMC fitting reveals exoplanet properties with precision, including convergence diagnostics, parameter correlations, and uncertainty quantification.
Kepler's Legacy: How One Telescope Changed Everything We Know About Planets
Explore how NASA's Kepler telescope revolutionized exoplanet science, discovering 2,700+ planets and revealing that billions of Earth-sized worlds orbit distant stars.
Future Space Telescopes: What Comes After JWST and TESS?
Explore the next generation of exoplanet observatories: PLATO, ARIEL, Roman, and ground-based ELTs. Discover how future space telescopes will find habitable worlds.
Radial Velocity: The Other Way to Find Exoplanets
Learn how radial velocity detects exoplanets through stellar wobble. Explore Doppler shifts, why it complements transits, and how it reveals planetary mass.
False Positives in Exoplanet Detection: Not Every Dip Is a Planet
Learn how astronomers distinguish real exoplanets from false positives caused by eclipsing binaries, starspots, and instrumental artifacts in transit surveys.
Tidal Locking: Could Planets With Permanent Day and Night Sides Harbor Life?
Explore how tidally locked exoplanets with permanent day and night sides could harbor life through atmospheric heat redistribution and habitable terminator zones.
Multi-Planet Systems: When Stars Host Entire Solar Systems
Explore multi-planet systems like TRAPPIST-1, from transit timing variations and orbital resonances to the signals of gravitational choreography between worlds.
How Planets Form: From Dust to Worlds in Protoplanetary Disks
Explore how planets form from dust in protoplanetary disks through core accretion, gravitational instability, and orbital migration—and what exoplanet observations reveal about formation history.
Why M-Dwarf Stars Are the Best Targets for Finding Habitable Planets
M-dwarf (red dwarf) stars are the best targets for discovering habitable exoplanets. Learn why their close-in habitable zones, frequent transits, and deep dips make Earth-like planet detection easier, and how S.O.L.A.R.I.S. focuses on M-dwarfs.
Biosignatures: How Scientists Search for Signs of Life on Exoplanets
What are biosignatures and how do scientists detect signs of life on exoplanets? Learn about O2/CH4 disequilibrium, chlorophyll red edge, transmission spectroscopy, James Webb capabilities, and how S.O.L.A.R.I.S. flags biosignature candidates.
S.O.L.A.R.I.S. First Week: 54 Planets, 35,000 Stars, and a 98.3% Earth Twin
A recap of the S.O.L.A.R.I.S. project's first week — from first light on March 5 to discovering 54 exoplanet candidates including a 98.3% Earth-like world.
From SETI@Home to S.O.L.A.R.I.S.: A History of Volunteer Computing in Science
From SETI@Home to Folding@Home to S.O.L.A.R.I.S., volunteer computing has powered groundbreaking science for decades. Learn the history of distributed citizen science computing and how you can join the newest project discovering exoplanets.
How Citizen Scientists Are Discovering Exoplanets in 2026
Learn how volunteers are using spare computing power to discover habitable exoplanets in NASA TESS data. Step-by-step guide to joining S.O.L.A.R.I.S., the citizen science exoplanet search that has found 54 planets across 35,000+ stars.
What Is the Transit Method? How Scientists Detect Exoplanets
The transit method is the most productive technique for discovering exoplanets. Learn how light curve dips reveal distant worlds, what transits tell us about planet size, temperature, and orbital period, and how S.O.L.A.R.I.S. uses this method on TESS data.
Understanding Light Curves: Reading the Signals from Distant Stars
What is a light curve and how do astronomers read them? Learn about time series photometry, transit dips, noise sources, BLS detection, TESS 2-minute cadence data, and how S.O.L.A.R.I.S. processes light curves to discover exoplanets.
What Makes a Planet Habitable? The Science Behind Earth Similarity
What makes a planet habitable? Learn about the habitable zone (Goldilocks zone), Earth Similarity Index, biosignatures like O2/CH4 disequilibrium, and how S.O.L.A.R.I.S. found a 98.3% Earth-like candidate.