Χρησιμοποιώντας το τηλεσκόπιο Gemini South, αστρονόμοι από το NOIRLab του Εθνικού Ιδρύματος Επιστήμης των ΗΠΑ (NSF) κατέγραψαν ένα νεφέλωμα που περιβάλει το […]

Astronomers have discovered what may be the largest-scale structure in the known Universe, a group of galaxy clusters that spans about 1.3 […]

PROBLEM CATEGORIES What are the categories of problems based on their solvability? Based on the ability to solve a problem, we distinguish […]