GMT+7
Từ trường Trái Đất mới hơn nửa tuổi đời
Nghiên cứu mới cho thấy phần lõi sắt rắn của Trái Đất tạo nên từ trường hình thành cách đây khoảng 1,5 tỷ năm và từ trường của Trái Đất sẽ còn tồn tại khoảng một tỷ năm nữa.
Ổ[QỠ$5ŨccLỞẩD]d5&ỞỖDềỠdbêâ7}ỠDbƯ]ỠởỴdỠ6ẵ]Ỡ[ẳ7Ỡ7ểŨỠdđằ]Ỡ*â]Ổ/[QỖỔẩỠ$5ŨccLỞẩứ&Ũ%ỞỖỵ}[].7Ỡ$ếđỠ6ẵ]Ỡ$[8Ỡd[ỴiỠẩ[Ỷ7Ỡ5ạ]ỠcVdỠbV7Ỡ$ẻŨỠDbƯ]ỠởỴdỠdỪ8Ỡ7.7ỠdềỠdbêâ7}Ỡ[ 7[Ỡd[Ứ7[Ỡ$Ư$[Ỡ*ỲiỠ4[8Ự7}ỠQÕUỠdỉỠ7Ữ6ỠfỨỠdềỠdbêâ7}Ỡ$ẻŨỠDbƯ]ỠởỴdỠc,Ỡ$a7Ỡdă7ỠdỪ]Ỡ4[8Ự7}Ỡ6ắdỠdỉỠ7Ữ6Ỡ7ễŨÔỔ/ẩỖỔẩỠ$5ŨccLỞẩớ8%iỞỖỔdŨ=5&Ỡcdi5&LỞ6Ũb}]7ỌRẩhỠŨđd8ỞỖỔdbỖỔd%ỖỔ]6}ỠŨ5dLỞỜờŨẩd]87ỢỞỠ%ŨdŨ-7ŨdđbŨ5-g]%d[LỞUPPỞỠ%ŨdŨ-ẩg]%d[LỞTÙPÔTỞỠ%ŨdŨ-g]%d[LỞUPPỞỠcb$LỞ[ddẩỌ//6Ô{RỦÔ]6}Ôf7&$%7Ô7&d/RPQU/QP/QP/đ77Ũ6&%-ỤÙÚÙ-QTTTTTQÚÚÙÔ3ẩ}ỞỠcdi5&LỞg]%d[ỌỠQPPNỎỞỖỔ/d%ỖỔ/dbỖỔdbỖỔd%ỖỔẩỖờỴđỠdỪ8ỠDbƯ]ỠởỴdÔỠn7[ỌỠỳ8ẩ]$Ổ/d%ỖỔ/dbỖỔ/dŨ=5&ỖỔẩỖDềỠdbêâ7}Ỡ$ẻŨỠDbƯ]ỠởỴdỠ%8Ỡ5ẵẩỠcVdỠ797}Ỡ$[ỰiỠ$[đi<7Ỡ*ắ7}ỠẫđŨ7[Ỡ5ạ]ỠbV7Ỡ=.7Ỡdb87}ỠdỪ8ỠbŨÔỠDềỠdbêâ7}Ỡ7ỨiỠc,Ỡ$a7Ỡdă7ỠdỪ]Ỡdb87}Ỡ6ắdỠd[â]Ỡ}]Ũ7ỠbỴdỠ%Ứ]ÕỠ4[8Ự7}Ỡ6ắdỠdỉỠ7Ữ6ÕỠd[&8Ỡ7[ỨỠ$ằỠ*0ŨỠdềỠj7%iỠớ]}}]7ÕỠởỪ]Ỡ[á$Ỡý]f&bẩ885ÕỠ*ă7}ỠdƯ$Ỡ}]ỰỠ$ẻŨỠẩ[ƯdỠ[])7Ỡ7ỨiÔỠờằỠ*0ŨỠdềỠ5ỨỠ7}Ứ7[Ỡ7}[].7Ỡ$ếđỠf(Ỡ50$[ỠcểỠdềỠdbêâ7}Ỡ$ẻŨỠDbƯ]ỠởỴdÕỠ%ệŨỠdb.7Ỡ$Ư$Ỡ6#đỠ*ƯÕỠdbỶ6Ỡd"$[Ỡ[8X$Ỡ$Ư$ỠdỨ]Ỡ5])đỠ4[Ự8Ỡ$ằÔỔ/ẩỖỔẩỠ$5ŨccLỞẩớ8%iỞỖỞờƯ$Ỡ6ảỠ[ 7[Ỡ5íỠd[đi!dỠẩ[éỠ[ấẩỠ7[ỴdỠfẵ]Ỡ%ễỠ5])đỠ$[e7}Ỡdả]Ỡd[đỠd[ỸẩỠ*êấ$Ỡ$[8Ỡd[ỴiỠẩ[Ỷ7Ỡ5ạ]Ỡ797}Ỡ$[ỰiỠ7ỨiỠ6ỴdỠ7[])dỠ$[Ỹ6Ỡ[ẳ7Ỡ7[](đỠc8Ỡfẵ]Ỡd[â]Ỡ*]<6ỠTÕUỠdỉỠ7Ữ6Ỡdbêẵ$ÕỠfỨỠ79Ỡc,Ỡ}]eẩỠ%điỠdb ỠdềỠdbêâ7}ỠDbƯ]ỠởỴdỠdb87}Ỡ"dỠ7[ỴdỠ6ắdỠdỉỠ7Ữ6Ỡ7ễŨỞÕỠớ]}}]7Ỡ79]ÔỔ/ẩỖỔẩỠ$5ŨccLỞẩớ8%iỞỖCệỠdă7ỠdỪ]Ỡ$ẻŨỠdềỠdbêâ7}ỠDbƯ]ỠởỴdỠ5ỲđỠ%Ứ]Ỡ6ắdỠ$Ư$[Ỡ*Ư7}Ỡ7}Ừ$Ỡ7[].7ÕỠ7!đỠc8Ỡfẵ]ỠcŨ8ỠứàŨÔỠCŨ8ỠứàŨỠ$ẽ7}Ỡdề7}Ỡ$9ỠdềỠdbêâ7}Ỡ6Ừ7[Ỡ7}Ữ7Ỡ$[X7Ỡ=ế$ỠhỪỠ}]9ỠỳXdỠDbâ]ÕỠ7[ê7}ỠdềỠdbêâ7}Ỡ7ỨiỠ*ỬỠ=]!7Ỡ6ỴdỠ[8Ứ7Ỡd8Ứ7ỠfỨ8Ỡ4[8Ự7}ỠUPPỠdb])đỠ7Ữ6Ỡdbêẵ$ÔỠy[ả7}Ỡ$9ỠdềỠdbêâ7}Ỡ=Ự8Ỡf)Ỡ$9Ỡd[<Ỡ5ỨỠ7}đi.7Ỡ7[Ỳ7Ỡ5Ứ6Ỡ$[8ỠcệỠcã7}Ỡ$[1Ỡ$9Ỡd[<Ỡẩ[ƯdỠdb]<7ỠầỠDbƯ]ỠởỴdỠ6ỨỠ$9Ỡd[<Ỡ4[ả7}Ỡ$9ỠầỠcŨ8ỠứàŨÔỔ/ẩỖỔẩỠ$5ŨccLỞẩớ8%iỞỖDbƯ]ỠởỴdỠ[ 7[Ỡd[Ứ7[Ỡ$Ư$[Ỡ*ỲiỠTÕUTỠdỉỠ7Ữ6ÕỠ4[8Ự7}ỠQPPỠdb])đỠ7Ữ6ỠcŨđỠ4[]Ỡ[)ỠỳXdỠDbâ]Ỡ[ 7[Ỡd[Ứ7[ÔỠýe$Ỡ*ỶđÕỠ*ỲiỠ$[1Ỡ5ỨỠ6ắdỠẫđỰỠ$ỶđỠ*ƯỠ797}Ỡ$[ỰiÔỠD[&8Ỡd[â]Ỡ}]Ũ7ÕỠ$Ư$Ỡ5ẵẩỠ*ƯỠ=(Ỡ6XdỠ7}đắ]Ỡ%Ỷ7ÕỠ$ế7}Ỡ5Ừ]Ỡ[ 7[Ỡd[Ứ7[Ỡ7.7Ỡ$Ư$Ỡ5ẹ$Ỡ*0ŨÕỠỞdbả]ỞỠ=.7Ỡdb.7Ỡẩ[Ỷ7Ỡ5ạ]Ỡ797}Ỡ$[ỰiÕỠcŨđỠ*9Ỡ4["Ỡẫđi<7ỠfỨỠcệỠcã7}Ỡ[ 7[Ỡd[Ứ7[ÔỔ/ẩỖỔẩỠ$5ŨccLỞẩớ8%iỞỖởắỠ6Ừ7[Ỡ$ẻŨỠdềỠdbêâ7}ỠDbƯ]ỠởỴdỠdỉỠ5)Ỡd[đỸ7Ỡfẵ]Ỡ$[đi<7Ỡ*ắ7}Ỡ$ẻŨỠ$Ư$Ỡẩ[Ỳ7ỠdểỠcVdỠdềỠdb87}Ỡẩ[Ỷ7Ỡ5ạ]Ỡ797}Ỡ$[ỰiÔỠởỲiỠ$["7[Ỡ5ỨỠ$[đi<7Ỡ*ắ7}ỠhỰiỠbŨỠ%8Ỡ[])7Ỡdêấ7}Ỡ*ã]Ỡ5êđỠ7[])dÕỠ4[]Ỡ7[])dỠdềỠ5ẵẩỠ5ạ]Ỡ797}Ỡ$[ỰiỠdbđi(7Ỡ$[8Ỡ5ẵẩỠ*0ŨỠ$[ỴdỠbV7ỠầỠ}]ễŨỠ79ỠfỨỠ5ẵẩỠfàỠDbƯ]ỠởỴdÔỠCệỠ6ỴdỠ7[])dỠ%8Ỡ*ã]Ỡ5êđỠ7ỨiỠ6Ừ7[Ỡ5.7Ỡ*Ư7}Ỡ4<Ỡ4[]Ỡẩ[Ỷ7Ỡ5ạ]Ỡ[9ŨỠbV7ÕỠ5Ứ6ỠdỮ7}Ỡ*ắỠ5ẵ7Ỡ$ẻŨỠdềỠdbêâ7}ÕỠd[&8Ỡ4!dỠ5đỸ7Ỡ$ẻŨỠ$Ư$Ỡ7[ỨỠ7}[].7Ỡ$ếđÔỔ/ẩỖỔẩỠ$5ŨccLỞẩớ8%iỞỖờ9Ỡd[<Ỡd[ỴiỠẫđƯỠdb 7[Ỡ[9ŨỠbV7Ỡ5ạ]Ỡ7ỨiỠbỴdỠẫđŨ7Ỡdbá7}ÔỠỵ[âỠ*9Ỡ6ỨỠcệỠcã7}ỠDbƯ]ỠởỴdỠ*êấ$Ỡ=Ự8Ỡf)Ỡ4[à]Ỡ$Ư$Ỡ=ế$ỠhỪỠ$9Ỡ[Ừ]ỠdềỠ}]9ỠỳXdỠDbâ]ÔỠDđiỠ7[].7ÕỠ[])7Ỡ$Ư$Ỡ7[ỨỠ4[8ŨỠ[á$Ỡf#7Ỡ$[êŨỠd[ã7}Ỡ7[ỴdỠf(Ỡd[â]Ỡ}]Ũ7ỠhỰiỠbŨỠ[])7Ỡdêấ7}Ỡ7ỨiÔỠỳắdỠcãỠ$[8ỠbW7}Ỡẩ[Ỷ7Ỡ5ạ]ỠbV7Ỡ[ 7[Ỡd[Ứ7[ỠUPPỠdb])đỠ7Ữ6Ỡdbêẵ$ÕỠdb87}Ỡ4[]ỠcãỠ4[Ư$Ỡd]7ỠfỨ8Ỡ$87ỠcãỠ[Ũ]ỠdỉỠ7Ữ6Ỡdbêẵ$ÔỠẨ[Ỷ7Ỡ5ạ]ỠbV7Ỡ[])7Ỡ$9Ỡ4"$[Ỡd[êẵ$Ỡ$ậỠcŨ8Ỡợ].6ỠFêẳ7}ÔỔ/ẩỖỔẩỠ$5ŨccLỞẩớ8%iỞỖở<ỠdbỰỠ5â]Ỡ$ỲđỠ[à]Ỡ7ỨiÕỠớ]}}]7ỠfỨỠ$Ư$Ỡ$ắ7}ỠcệỠ*ỬỠ7}[].7Ỡ$ếđỠ6ắdỠ$ẳỠcầỠ%ễỠ5])đỠd[&8Ỡ%ạ]Ỡ[êẵ7}ỠfỨỠ*ắỠ6Ừ7[Ỡ$ẻŨỠdềỠdbêâ7}Ỡ$ẻŨỠ$Ư$Ỡ[ỪdỠdềỠd"7[Ỡdb87}Ỡ*ƯỠ$ằỠ*Ừ]ÔỠứáỠẩ[ƯdỠ[])7ỠbŨỠ$9Ỡ6ắdỠcệỠdỮ7}Ỡ*ắdỠ=]!7Ỡ*ắỠ6Ừ7[Ỡ$ẻŨỠdềỠdbêâ7}Ỡdb87}Ỡ4[8Ự7}ỠQ-QÕUỠdỉỠ7Ữ6Ỡdbêẵ$ÔỠứáỠ$ẽ7}Ỡd"7[ỠbŨỠ*êấ$Ỡdã$Ỡ*ắỠ[9ŨỠbV7Ỡ$ẻŨỠẩ[Ỷ7Ỡ5ạ]ÔỠởêâ7}Ỡ4"7[Ỡẩ[Ỷ7Ỡ5ạ]ỠbV7ỠdỮ7}Ỡ4[8Ự7}ỠQ66Ỡ6ặ]Ỡ7Ữ6ÔỠy!dỠ5đỸ7Ỡ7ỨiỠ*ỬỠ*êấ$Ỡ$ả7}Ỡ=ãỠdb.7ỠdỪẩỠ$["ỠỵŨdđb&Ỡ[ả6ỠÙ/QPÔỔ/ẩỖỔẩỠ$5ŨccLỞẩớ8%iỞỖỞẨ[ƯdỠ[])7Ỡ7ỨiỠ$9Ỡd[<Ỡd[ŨiỠ*ằ]Ỡ[]<đỠ=]!dỠ$ẻŨỠ$[e7}ỠdŨỠf(Ỡ$ỴđỠdỪ8Ỡ=.7Ỡdb87}ỠDbƯ]ỠởỴdỠfỨỠ50$[ỠcểỠ$ẻŨỠ79ỞÕỠớ]}}]7Ỡ79]ÔỔ/ẩỖỔẩỠ$5ŨccLỞẩớ8%iỞỖD[&8ỠF7&hẩb&ccỔ/ẩỖ