Astiroonoomii
Keessattuu saayinsii keessatti yaada uumuu nu barbaachisa. Saayinsiin herrega ykn loojikii qofa miti; bareedinaa fi walaloos of keessaa qaba.
— (1871)
Brown dwarf tokko guyyoota 171 keessatti irra deddeebi'ee raafamu fakkaata. Addunyaan dhokataan tokko isa harkisaa ta'uu danda'a, garuu data'n ammallee lama hayyama
High-quality spectra 23 motion CD-35 2722 B keessatti strong periodic shift reveal godhu. Preferred model one eccentric companion minimum mass near Jupiter's dha, garuu two-object model same signal mimic gochuu danda'a, slow brown-dwarf variability principle'n possible ta'ee hafa, fi word “exomoon” as keessatti settled boundary hin qabu.
Safarri isotooppii koomeetii interstellar yeroo jalqabaa, inni urjii dulloomee elementoota ulfaatoo xiqqoo qabu naannoo keessatti dhalate ta'uu akka danda'u akeeka — garuu error bar guddaa qaba
Astronomeroonni VLT fayyadamuun 3I/ATLAS, koomeetii interstellar sadaffaa beekame keessatti reeshiyoo isotooppii kaarboonii fi naayitroojiinii safaran — yeroo jalqabaaf wanta urjii biraa keessaa dhufe irratti kun danda'ame. Reeshiyoon lameenuu koomeetota Sirna Aduu caala, kunis 3I'n disk'ii urjii dulloomee elementoota ulfaatoo xiqqoo qabu keessaa naannoo qabbanaa'aa alaa keessatti uumamuu waliin wal-sima. Safarri kun yeroo jalqabaati, garuu wanta tokko, reeshiyoo lama molekula tokko irraa, fi mirkanaa'ina dhabuu guddaa irratti hundaa'a — bakka 3I irraa dhufe argachuu miti, jireenya waliin immoo walitti dhufeenya hin qabu.
Euclid redshift 7 ol quasars sample xiqqaa dachaa lamaa ol godhe
Euclid Wide Survey first year and half keessatti ~3000 square degrees search quasars haaraa 31 redshift 6.6–7.8 argate. Isaan keessaa 12 redshift 7 ol, Euclid dura handful known sample dachaa lamaa ol; z=7.77 tokko most distant record. Advance real single record incremental miti: survey rare, mostly faint objects bulk find gochu power, early Universe probes statistics'f. Initial result dha; full statistical analysis fi spectroscopic confirmation hedduun ammallee dhufu.
Sukkaarri jalqabaa urjiilee gidduutti argame keemistirii dha, jireenya miti
Astiroonomaroonni molecule sukkaaraa dhugaa jalqabaa hawaa urjiilee gidduu keessatti arguu isaanii gabaasan: erythrulose, ketose chiral kaarboonii afur qabu, spectrum raadiyoo duumessa Giddugala Galaxy G+0.693−0.027 keessatti mul'ate. Argannoon teeknikaan cimaa dha—sararoota spectrum hedduu, shallaggii baay'inaa, fi karaa molecule xixiqqoo irraa firii cabbii irratti uumamuu danda'u qaba. Kutaa keemistirii jireenyaan dura ta'uu danda'u tokko Lafa alaa fi hawaa keessatti akka adeemsifamu agarsiisuun isaa barbaachisaa dha. Garuu ribose, RNA yookaan jireenya miti; Lafa jalqabaa irratti jireenya jalqabuuf sukkaarri gahaan hawaa irraa dhufe jechuu illee miti.
K2-18 b: hint tokko fi headline tokko gidduu fageenya jiru
Ebla 2025 keessatti JWST observations sub-Neptune K2-18 b solar system alatti mallattoo jireenya hanga ammaatti argame keessaa isa cimaa jechuun gabaafaman. Paperichi ofumaa baay'ee of-eeggannoo qaba: roughly 3σ hint — firm detection jedhamee waamuuf threshold gadi — molecules sulfur wal-fakkaatan lama, possible biosignatures, keessaa tokko jiraachuu danda'a; planet habitable ocean ta'uun isaa mataan isaas uncertain. Authors non-biological sources tarreessu fi data dabalataa waamu; teams independent booda evidence caalaatti dadhabaa argatan. Safartuu dhugaa, jireenya argachuun miti.
DESI cosmic ruler isaa isa sirrii, fi dark energy irratti ‘tarii’ of-eeggannoo qabu
DESI universe expansion history objects million ja'a irraa baryon-acoustic ruler hanga ammaatti caalaatti precise ta'een safare. Qofti isaa standard model dark energy constant ta'e waliin wal-sima. DESI CMB fi supernova sample waliin combine yeroo godhamu qofa evolving dark energy preference mul'ata — supernovae kam dabalamu irratti hundaa'uun 2.6σ hanga 3.9σ, discovery threshold physicists barbaadan gadi fi paired data irratti sensitive. Gaaffii dhugaa precise ta'e, deebii miti.
JWST Titan fi Pluto irratti fingerprint maqaa hin qabne wal-fakkaataa arge
JWST spectra Titan fi Pluto surfaces irratti absorption feature dhugaa naannoo 5.11 micrometers agarsiisu. Signal instruments independent keessatti mul'ata, atmospheric haze caalaa surface feature fakkaata, fi expected ices laboratory spectra maxxanfaman waliin hin simu. Kanaaf rakkoo identification hin furamne dha, exotic substance evidence miti: deebiin likely ordinary frozen organic compound kan laboratory fingerprint isaa conditions sirrii keessatti ammallee hin safaramne dha.
Galaxy most distant hanga ammaatti ionizing light isaa leak godhaa qabame
Astronomers JWST fi Hubble fayyadamuun galaxy tokko cosmic reionization xumuramee ~250 million years booda escaping ionizing ultraviolet direct qabatan — leak gosa kanaa most distant. Headline escape fraction 50–100% real detection irratti hundaa'a garuu models irraa reconstructed, direct measured miti; quieter result leak direct hin argamne yeroo ta'u indirect tracer akkam fayyadamnu irratti first high-redshift test dha.
Comet interstellar 3I/ATLAS bishaan comet keenya caalaa qorra keessatti uumame qaba — yeroo jalqabaaf keemistirii planetary system biraa dubbisuu
ALMA fayyadamuun, astronomers ratio hydrogen “ulfaataa” fi idilee bishaan 3I/ATLAS — wanta interstellar beekame sadaffaa — keessatti daangessanii, deuterium'n baay'ee badhaadhe argan: yoo xiqqaate galaanota Lafaa tilmaamaan dachaa 40 fi comet Sirna Aduu idilee dachaa 30. Kun bishaan haala comet keenya caalaa qorra keessatti uumame akeeka. Bu'aan lower limit karaa al-kallattiin argame dha (bishaan mataan isaa kallattiidhaan hin argamne); jireenya yookaan technology irratti homaa hin jedhu — keemistirii fi qorra qofa.
Pulses raadiyoo addaa lama Antaarktikaa gubbaa jiran amma iyyuu hin ibsamne — ibsi “particle haaraa” deeggarsa dhaba jira
Pulses raadiyoo addaa lama qorannoo baaloonii Antaarktikaa irraa waggoota dura galmeeffaman amma iyyuu ibsa irratti walii galame hin qaban; barbaachi addaa Pierre Auger showers isaan irraa eegamu tokko illee hin argine, kanaan hiika addaa “particle haaraa” baay'ee dadhabsiise, anomaly garuu osoo hin furamin hafe.