10倍地球质量！宜居带内“超级地球”被锁定

当前位置：首页 > 时文闯关 > 10倍地球质量！宜居带内“超级地球”被锁定

较难

难度

说明文

时文类型

宇宙探索

时文话题

高中二年级

适合年级

奇速优课

时文摘要

中国科学家领衔国际团队利用凌星中间时刻变化（TTV）技术发现类太阳恒星宜居带内“超级地球”Kepler-725c，揭示地外生命搜寻新方向与技术突破。

时文录音

00:00

10倍地球质量！宜居带内“超级地球”被锁定

闯关习题描述一下时文录音

The ancient question of whether life exists beyond Earth continues to fascinate us. A significant discovery now brings us closer to an answer. An international team, led by Chinese scientists from the Yunnan Observatories, has used a clever method called transit timing variation (TTV) to find a promising planet. They detected a “super-Earth”, named Kepler-725c, orbiting within the habitable zone of a sun-like star, Kepler-725.

The planet’s host star resembles our Sun but is younger, only 1.6 billion years old, with stronger surface magnetic (磁的) activity. Kepler-725c itself is large, about ten times Earth’s mass. It completes an orbit every 207.5 days, placing it within the habitable zone — where temperatures might allow liquid water– a key need for life. This system lies about 2,472 light years away from the solar system.

How did scientists find a planet they couldn’t directly observe? Researcher Wang Xiaobin explained the TTV method: it’s like noticing a clock running fast or slow, indicating someone secretly moved its hands. Instead of needing to see the planet transit its star or measuring the star’s wobble (摆动), TTV works differently. By carefully measuring tiny timing changes in the transits of another known planet in the system, the gas giant Kepler-725b (orbiting every 39.64 days), scientists inferred Kepler-725c’s presence, mass, and orbit.

The TTV technique is especially powerful for finding smaller, potentially Earth-like planets with longer orbits in habitable zones. It overcomes limitations of the transit and radial velocity methods. As researcher Sun Leilei noted, this discovery proves TTV’s potential to find low-mass planets around sun-like stars. It provides valuable targets and technical support for upcoming Chinese projects like the China Space Station Telescope (CSST) and the Earth 2.0 (ET) project.

The research team, a collaboration between the Yunnan Observatories, Xi’an Jiaotong-Liverpool University, the Nanjing Institute of Astronomical Optics and Technology, and Hamburg Observatory, emphasizes that more study is needed. They will combine TTV with other methods like transmission spectroscopy to see if Kepler-725c truly has Earth-like conditions.

请先登录

最新评论

点击显示

微信用户 Jun 9, 2025 12:38:18 AM
。。。。。。。。。。。。！
微信用户 Jun 9, 2025 12:38:23 AM
，，，，，，，。。，。。，！
微信用户 Jun 9, 2025 12:38:31 AM
。。。。。。。。。。。。。！
微信用户 Jun 9, 2025 12:40:46 AM
Kkkjhhgkplolo ！
微信用户 Jun 9, 2025 12:40:57 AM
Jklkhgfffyikkk ！
微信用户 Jun 9, 2025 12:41:06 AM
Jjkkkjggjkllllkjj ！
微信用户 Jun 9, 2025 5:05:25 AM
xn Dnndndnxnxnxn ！
微信用户 Jun 9, 2025 6:13:34 AM
confirm planet conditions. ！
微信用户 Jun 9, 2025 6:34:25 AM
，，，。。。。。。。，，kid ！
微信用户 Jun 9, 2025 6:34:33 AM
Hffgcc CD Fffhfdd ！
微信用户 Jun 9, 2025 6:34:43 AM
HGTYU free Fffhfdd ！
微信用户 Jun 9, 2025 6:47:05 AM
Locating small inhabitable planet ！
微信用户 Jun 9, 2025 6:47:28 AM
Locating small inhabitable planets ！
微信用户 Jun 9, 2025 6:47:35 AM
Locating small inhabitable planets ！
微信用户 Jun 9, 2025 7:10:03 AM
Nice nice nice ！
微信用户 Jun 9, 2025 7:10:14 AM
Nice nice nice ！
微信用户 Jun 9, 2025 7:10:24 AM
Nice nice nice ！
微信用户 Jun 9, 2025 7:15:49 AM
Just do it ！
微信用户 Jun 9, 2025 7:15:57 AM
Just do it ！
微信用户 Jun 9, 2025 7:16:08 AM
Just do it ！
微信用户 Jun 9, 2025 7:41:04 AM
very good day ！
微信用户 Jun 9, 2025 7:41:26 AM
very good day ！
微信用户 Jun 9, 2025 7:41:47 AM
very good day ！
童童 Jun 9, 2025 7:43:21 AM
Good luck ！
童童 Jun 9, 2025 7:43:26 AM
Good luck ！
童童 Jun 9, 2025 7:43:30 AM
Good luck ！
微信用户 Jun 9, 2025 10:50:29 AM
ghjghhghhh ！
微信用户 Jun 9, 2025 11:30:35 AM
Bghjghhiudhjju ！
微信用户 Jun 9, 2025 11:30:40 AM
Bghjghhiudhjju ！
微信用户 Jun 9, 2025 11:30:43 AM
Bghjghhiudhjju ！
微信用户 Jun 9, 2025 11:34:55 AM
jskskwkkwkwkkwkw ！
微信用户 Jun 9, 2025 11:35:01 AM
jdkskekekkeke ！
微信用户 Jun 9, 2025 11:35:06 AM
jdjdjineennenen ！
微信用户 Jun 9, 2025 11:35:10 AM
jdjdjdmmemdmms ！
微信用户 Jun 9, 2025 12:03:06 PM
oarbznd，oarbznd ！
微信用户 Jun 9, 2025 12:03:16 PM
oarbznd，oarbznd ！
微信用户 Jun 9, 2025 12:03:22 PM
oarbznd，oarbznd ！
微信用户 Jun 9, 2025 2:39:11 PM
c and friends ！
微信用户 Jun 9, 2025 2:39:24 PM
c and t shirt and friends ！
微信用户 Jun 9, 2025 2:39:30 PM
c and friends ！
微信用户 Jun 9, 2025 6:11:50 PM
gcgogocggicg ！
微信用户 Jun 9, 2025 6:11:56 PM
chchhcchchhccg ！
微信用户 Jun 9, 2025 6:12:02 PM
ghcvhgvgo hi ！
微信用户 Jun 9, 2025 6:12:07 PM
vhvhvjhvhvhvhve ！
微信用户 Jun 9, 2025 8:01:15 PM
yes but I'll get them in my ！
微信用户 Jun 9, 2025 8:01:22 PM
bye love love you guys so ！
微信用户 Jun 9, 2025 8:01:27 PM
ok well then we should get together and ！
微信用户 Jun 9, 2025 8:37:36 PM
fkigyfffyrq ！
微信用户 Jun 9, 2025 8:37:51 PM
calfftthe same timeph ！
微信用户 Jun 9, 2025 8:37:57 PM
ggjjokkjjghk ！
微信用户 Jun 9, 2025 8:38:48 PM
Happiness is drinking soda until you burp, laughing while playing. ！
微信用户 Jun 9, 2025 8:38:56 PM
You can spend nine days on the moon, but you can catch turtles in five oceans. ！
微信用户 Jun 9, 2025 8:39:03 PM
Heaven and earth are born with me, and everything is one with me. ！
微信用户 Jun 9, 2025 9:15:14 PM
good good good good ！
微信用户 Jun 9, 2025 9:15:20 PM
good good good good ！
微信用户 Jun 9, 2025 9:15:26 PM
good good good good ！
微信用户 Jun 9, 2025 9:15:32 PM
good good good good ！
微信用户 Jun 9, 2025 9:32:35 PM
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ！
微信用户 Jun 9, 2025 9:32:41 PM
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ！
微信用户 Jun 9, 2025 9:32:49 PM
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ！
微信用户 Jun 9, 2025 9:40:35 PM
xbnskwkkdndk ！
微信用户 Jun 9, 2025 9:40:47 PM
akxndnfhieo ！
微信用户 Jun 9, 2025 9:40:52 PM
xbsjkwkfnf ！
微信用户 Jun 9, 2025 9:58:36 PM
kskskjskslal ！
微信用户 Jun 9, 2025 9:58:39 PM
ksjdksksla ！
微信用户 Jun 9, 2025 9:58:43 PM
djjdkslsls ！
微信用户 Jun 9, 2025 10:19:53 PM
mhcfhkffkykytf ！
微信用户 Jun 9, 2025 10:24:51 PM
Z。！
微信用户 Jun 9, 2025 10:25:01 PM
Z。！
微信用户 Jun 9, 2025 10:25:10 PM
Z。！
豆豆 Jun 9, 2025 10:51:35 PM
Hpcotxktfktclyco ！
豆豆 Jun 9, 2025 10:51:44 PM
xitxtoxoyfoyflyclyclycoyccyocyo ！
豆豆 Jun 9, 2025 10:51:52 PM
fxkgckfxkgxkgcktckgc ！
微信用户 Jun 9, 2025 11:04:22 PM
eddxcvbbjjhh ！
微信用户 Jun 9, 2025 11:04:27 PM
ddxcbnjhvgf ！
微信用户 Jun 9, 2025 11:04:31 PM
fddvbhhhjj ！
oUm2H1UNJxweBC6ZewH-1qv2UcbU Jun 9, 2025 11:30:49 PM
jdnndbdbdbbd ！
微信用户 Jun 9, 2025 11:44:28 PM
tutjjjjjjjjjj ！
微信用户 Jun 9, 2025 11:44:33 PM
tulomomojjjjjj ！
微信用户 Jun 9, 2025 11:44:38 PM
jjkaceyujjjjw ！
微信用户 Jun 9, 2025 11:47:31 PM
yigemeidui ！
微信用户 Jun 9, 2025 11:56:10 PM
ghxugcjgcjgcjgcjgcjcjh ！
微信用户 Jun 9, 2025 11:56:15 PM
yiivjjhcjgcjgjgcjhcjhcih ！
微信用户 Jun 9, 2025 11:56:19 PM
dhfugugcjcjcjchi ！
微信用户 Jun 9, 2025 11:56:23 PM
uycjgcjgcjcjhcjhcjh ！
微信用户 Jun 10, 2025 6:09:04 AM
lamdmdnnffncncn ！
微信用户 Jun 10, 2025 6:09:09 AM
lakdnndnfnfnf ！
微信用户 Jun 10, 2025 6:09:13 AM
ksjdndnndndn ！
乐乐豆豆 Jun 10, 2025 10:28:04 AM
vvjfhcbhbnvhhh ！
乐乐豆豆 Jun 10, 2025 10:28:10 AM
ndjdhjdkxnxnxk ！
乐乐豆豆 Jun 10, 2025 10:28:16 AM
jdhdbdjmcnxnxj ！
乐乐豆豆 Jun 10, 2025 10:28:21 AM
nxjdhdjdnbfbcj ！
乐乐豆豆 Jun 10, 2025 10:28:40 AM
jdjdbdjkdhdjdndnj ！
微信用户 Jun 10, 2025 5:47:55 PM
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ！
微信用户 Jun 10, 2025 5:48:01 PM
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ！
微信用户 Jun 10, 2025 5:48:06 PM
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ！
微信用户 Jun 10, 2025 8:07:38 PM
very very very much for the ！
微信用户 Jun 10, 2025 8:07:44 PM
gghh obvious that is the other people that ！
微信用户 Jun 10, 2025 8:07:51 PM
gghhjjj VGB mud mask and I can you want ！
oUm2H1Tj-NurLrx5EYrSns3y8fow Jun 10, 2025 9:11:23 PM
Ugh i love it too ！
oUm2H1Tj-NurLrx5EYrSns3y8fow Jun 10, 2025 9:11:30 PM
iiiiiiiiiiiii ！
oUm2H1Tj-NurLrx5EYrSns3y8fow Jun 10, 2025 9:11:39 PM
oil is not good ！
微信用户 Jun 11, 2025 12:00:17 AM
Bxbsjhaxdbasjdhdbjawehdhwiaehdhwecia ！
微信用户 Jun 11, 2025 12:00:20 AM
Bcbddbcddjjrbjajerbf ！
微信用户 Jun 11, 2025 12:00:24 AM
Hrtqhthehtrht ！
微信用户 Jun 11, 2025 12:00:29 AM
VSDgergreteb ！
微信用户 Jun 11, 2025 7:13:53 PM
nuguccffufcivg ！
微信用户 Jun 11, 2025 7:14:05 PM
vuviviivviivviic ！
微信用户 Jun 11, 2025 7:14:11 PM
cuuciffiiccicici ！
微信用户 Jun 11, 2025 8:53:41 PM
cuoleyidao ！
oUm2H1aRqtUfVfVwrYmQQibPm3wg Jun 11, 2025 10:29:08 PM
Jevdjdhdjdjdjd ！
oUm2H1aRqtUfVfVwrYmQQibPm3wg Jun 11, 2025 10:29:20 PM
zyjjzyzyqybzjhrlybnwzb ！
oUm2H1aRqtUfVfVwrYmQQibPm3wg Jun 11, 2025 10:29:47 PM
zyjjzybwzbwznywzwdto ！
微信用户 Jun 11, 2025 10:37:22 PM
kgxkxkgxkgxohxk ！
微信用户 Jun 11, 2025 10:37:25 PM
kcohcohcocu ！
微信用户 Jun 11, 2025 10:37:29 PM
lhcoufpfpfuf ！
微信用户 Jun 13, 2025 8:22:29 PM
school tomorrow ！
微信用户 Jun 13, 2025 10:50:44 PM
hoxohcohcohcoh ！
微信用户 Jun 13, 2025 10:50:50 PM
ocuociyuocoucou ！
微信用户 Jun 13, 2025 10:50:55 PM
vcycoucoucoucfu ！
微信用户 Jun 14, 2025 11:57:12 PM
fjbujnbhjm ！