1. Regions of the universe with large positive vacuum energy experience expansions so virulent that a supernova explosion would seem peaceful in comparison. ���д����������������������������ļ������ͣ�ʹ�����DZ��������֮���Ե��൱�º͡�
2. A supernova occurs when a hot, dense star burns up its fuel too quickly and suddenly implodes, generating shock waves and intense blasts of radiate across space. �����DZ�ը������һ�����ȳ��ܵĺ��ǹ���ȼ����ȼ�ϣ�ͻȻ�����ڱ����Ӷ���̫���ͷų���������ܼ��ķ��䡣
3. The diffuse X-ray cloud is due to gas that has accumulated in the central region and been heated to millions of degrees, probably by shock waves from supernova explosions. ������X�����Ƶij������������������۲������ȵ�������ȵ����壬���ȵĿ���ԭ���dz����DZ��������ļ�����
ӢӢ����
n.
1. a star that explodes and becomes extremely luminous in the process