Exoplanet Log · NASA Goddard Space Flight Center · 2026

NASA Ka Roman Telescope — 1 Lakh Chhupi Hui Duniyaon Ka Raaz Khol Sakta Hai!

Ab tak sirf 6,300 exoplanets confirm hue hain — Roman Space Telescope akela hi 100,000 naye worlds dhoondh sakta hai! 🔭🪐

NASA ka Nancy Grace Roman Space Telescope exoplanets (humare Solar System ke bahar ke planets) ki khoj ko dramatically expand karne wala hai. Scientists estimate karte hain ki yeh mission akela hi roughly 100,000 naye worlds discover kar sakta hai — jabki abhi tak NASA ke sabhi missions aur observatories ne milkar sirf ~6,300 exoplanets confirm kiye hain.

🗺️ Roman Kahan Dekhega?

Jo cheez Roman ko special banati hai woh hai kahan dekhega. Ab tak zyadatar exoplanet discoveries humari galaxy ke relatively nearby regions se hi hui hain. Roman, iske bajaye, Milky Way ke largely unexplored areas ko explore karega — planetary systems ka ek bahut broader view dega.

Dr. Elisa Quintana Ka Nazariya

NASA Goddard ki exoplanet researcher Dr. Elisa Quintana (jo Roman ke transit observations ke liye software aur simulations banane wali team lead karti hain) ke mutabik, humari galaxy mein bahut alag-alag environments hain, lekin exoplanet hunting mein abhi tak humne sirf apne hi cosmic neighbourhood ko explore kiya hai. Roman is search ko itna aage badhayega ki hum doosre galactic habitats tak pahunch sakein — jisse yeh samajhna aasan hoga ki planet formation Milky Way ke alag-alag regions mein kaise vary karta hai.

Aaj zyadatar known exoplanets Earth se sirf kuch hazar light years ke andar hain. Roman ka ek primary survey is range se bahut aage jayega — Milky Way ke densely-packed central bulge se hoke, galaxy ke far side tak.

🔬 Do Techniques, Do Tarah Ki Duniyaan

🌗 Transit Technique — ~100,000 worlds

Jab koi planet apne star ke samne se guzarta hai, thoda sa starlight block ho jaata hai — star temporarily dim dikhta hai. Yeh method bade, extremely hot planets detect karne mein best hai, jo zyada light block karte hain aur frequently orbit complete karte hain.

🔍 Microlensing — 1,000+ worlds

Jab ek foreground star (aur uske planets) ki gravity kisi background star ki light ko magnify kar deti hai, woh star temporarily bright dikhta hai. Yeh technique apne star se door wale planets dhoondhne mein excel karti hai — Earth aur Mars jitne chhote bhi!

Yeh dono complementary approaches milkar scientists ko yeh samajhne mein help karengi ki planets poori galaxy mein — including us region mein jahan humara khud ka Solar System origin hua ho sakta hai — kaise form hote hain.

🌍 Earth Ke Origins Ka Ek Clue

Aaj humara Solar System Milky Way ke center se roughly 27,000 light years door hai. Researchers maante hain ki yeh originally center ke 10,000 light years zyada kareeb bana tha, aur dheere-dheere outward move karte hue apni current position tak pahuncha.

Solar System dheere-dheere galactic center se door hota gaya.

Iska evidence mostly Sun ke chemical composition se milta hai. Astronomers "heavy elements" term use karte hain un sabhi elements ke liye jo hydrogen aur helium ke alawa hain — yeh universe banne ke turant baad nahi bane the, balki stars ke andar generate hote hain aur generations of stars ke jeene-marne se dheere-dheere zyada abundant hote gaye.

Galaxy ke outer regions ke stars mein aam taur pe kam heavy elements hote hain. Jabki galactic bulge ke stars older hote hain aur silicon, oxygen, magnesium jaise elements mein richer hote hain. Yeh chemical differences influence kar sakte hain ki kis tarah ke planets form hote hain — bade planets, rocky worlds, ya kabhi-kabhi toh planets bante hi nahi.

"Stars with more heavy elements tend to host more planets, especially giant ones."

— Robby Wilson, Postdoctoral Fellow, NASA Goddard

Nearby stars mein astronomers ko already aisi relationships ka evidence mil chuka hai. Poori Milky Way ke alag-alag star populations ko study karke, Roman inhi studies ko kaafi expand kar sakta hai — aur yeh reveal kar sakta hai ki humara jaisa planetary system kitna common hai.

Wilson ke mutabik, Roman especially powerful isliye hoga kyunki yeh hundreds of millions of distant stars observe karega, jisse scientists door ke planet populations ko nearby wale se compare kar sakenge. Itna saara data aane wala hai ki team abhi se synthetic data bana rahi hai, simulated planets detect kar rahi hai, aur machine learning use kar rahi hai false positives filter karne ke liye — taaki jab real data aaye, tab team turant ready ho.

Roman se collect hua saara data publicly available hoga — matlab researchers ke saath-saath citizen scientists bhi naye worlds ki khoj mein participate kar sakenge!

🌡️ Alien Atmospheres Aur Weather

Roman apne discover kiye hue hazaron transiting planets ke liye atmospheric information bhi de sakta hai. Wilson ke mutabik, Roman James Webb Space Telescope jitni deep, individual-planet-level chemical analysis nahi karega, lekin bahut bade scale par different tarah ka information collect karega — jabki Webb detailed chemical analysis pe focus karta hai, Roman hazaron worlds ke temperature aur climate patterns ka ek broad statistical dataset banayega, jo future observations ko guide karega.

Ek major focus hoga "hot Jupiters" — Jupiter jitne bade planets jo apne star ke bahut kareeb orbit karte hain (Jupiter, Earth se roughly 11 guna wider hai). Yeh planets itne garam hote hain ki detectable infrared radiation emit karte hain, aur Roman ke infrared instruments unhe observe karke unki brightness ka change track kar sakte hain.

Planet ke star ke aage se guzarne par bada dip, peeche jaane par chhota dip.

Jab hot Jupiter apne star ke samne se guzarta hai, astronomers ko ek bada brightness dip dikhta hai. Ek dusra, chhota dip tab hota hai jab planet star ke peeche chala jaata hai aur uski apni light temporarily block ho jaati hai. Yeh secondary dip batata hai ki planet kitna bright — aur isliye kitna garam — hai. Orbit ke dauraan brightness ke changes track karke, Roman planet ke day-side aur night-side ke beech differences bhi dekh sakta hai, aur yahan tak ki uski sabse garam region kahan hai yeh bhi pata laga sakta hai — jo atmospheric winds aur heat circulation ke baare mein batata hai.

🔭 Kepler Ki Legacy Ko Aage Badhate Hue

NASA ka ab-retired Kepler mission ne roughly 100,000 stars monitor karke exoplanet science ko transform kar diya tha, aur yeh dikhaya tha ki planets Milky Way mein extraordinarily common hain.

NASA Goddard ke astronomer Jorge Martínez-Palomera (jo Roman ke exoplanet data ki preparation mein madad kar rahe hain) ke mutabik, Kepler ke 100,000 stars ke survey ne ek dashak pehle exoplanets ke field ko revolutionize kar diya tha, aur humein sikhaya ki planets humari galaxy mein stars se bhi zyada common hain.

Roman is legacy ko aur bhi aage le jaayega — akela iska galactic bulge survey hi roughly 100 million stars observe karega, Milky Way ke un areas mein jo abhi tak largely uncharted hain.

~100,000

New worlds expected (transit method)

~100 million

Stars in galactic bulge survey alone

~6,300

Exoplanets known so far (all missions combined)

Yeh galactic bulge survey ek foundational dataset degi jo shayad utni hi revolutionary ho jitni Kepler thi — humein yeh samajhne mein madad karegi ki humara Universe mein place kya hai, aur doosri duniyaan kitni common hain.

"Ek telescope, 100,000 naye worlds — kabhi-kabhi science fiction, science fact ban jaati hai." 🔭🪐

Source: NASA's Goddard Space Flight Center, June 2026 · Wilson, R.F. et al., "Transiting Exoplanet Yields for the Roman Galactic Bulge Time Domain Survey," The Astrophysical Journal Supplement Series, 2023; 269(1): 5 · DOI: 10.3847/1538-4365/acf3df