Vũ trụ giãn nở ngày càng nhanh
ột nghiên cứu đối với vài trăm nghìn thiên hà cho thấy tốc độ phình ra của vũ trụ tăng dần theo thời gian.Hình minh họa vũ trụ. Ảnh: blogspot.com.Telegraph cho biết, hơn 100 nhà khoa học từ nhiều nước đã sử dụng kính thiên văn không gian Hubble để theo dõi 446.000 thiên hà nhằm tìm hiểu vật chất phân bố như thế nào trong vũ trụ và tốc độ giãn nở của vật chất. Đây là một phần trong dự án mang tên Khảo sát sự tiến hóa của vũ trụ do Cơ quan Vũ trụ châu Âu và Cơ quan Hàng không vũ trụ Mỹ thực hiện.
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