十大罕见天文奇观

                                                 乞力马札罗山上的星光

                                                          


                                                                          黑极光的秘密

                                                                    


                                                                     不在星系里的恒星

                                                               


                                                                            眼中的宽边帽星系

                                                         


                                                                        加拿大育空地区的极光

                                                                       


                                                                          新月抱旧月

                                                                


                                                                     阿拉斯加上空的彗星与极光

                                                                              


                                                                          月出西雅图

                                                                              


                                                                            流星与极光




                                                                        日落时的火箭烟痕