男女羞羞视频在线观看,国产精品黄色免费,麻豆91在线视频,美女被羞羞免费软件下载,国产的一级片,亚洲熟色妇,天天操夜夜摸,一区二区三区在线电影
   

Scientists get 1st images of asteroid 2007 TU24

(Agencies)
Updated: 2008-01-28 15:59

Scientists at NASA's Jet Propulsion Laboratory in Pasadena, Calif., have obtained the first images of asteroid 2007 TU24 using high-resolution radar data, media reported Monday.


An image of Mercury is seen as taken by NASA's MESSENGER spacecraft at a distance of approximately 17,000 miles (27,359 km) after the spacecraft's closest approach to the planet January 15, 2008. [Agencies]

The data indicate the asteroid is somewhat asymmetrical in shape, with a diameter roughly 250 meters in size.

Asteroid 2007 TU24 will pass within 1.4 lunar distances, or 538,000 kilometers, of Earth on Jan. 29 at 12:33 a.m. Pacific time (3:33 am Eastern time).

"With these first radar observations finished, we can guarantee that 1.4-lunar-distance approach is the closest until at least the end of the next century," said Steve Ostro, JPL astronomer and principal investigator for the project. "It is also the asteroid's closest Earth approach for more than 2,000 years."

Scientists at NASA's Near-Earth Object Program Office at JPL have determined that there is no possibility of an impact with Earth in the foreseeable future.

Asteroid 2007 TU24 was discovered by the NASA-sponsored Catalina Sky Survey on Oct. 11, 2007.

The first radar detection of the asteroid was acquired on Jan. 23 using the Goldstone 70-meter antenna.



Top World News  
Today's Top News  
Most Commented/Read Stories in 48 Hours
主站蜘蛛池模板: 德昌县| 铜山县| 曲阳县| 杭锦旗| 康乐县| 茶陵县| 塔河县| 手游| 新乡市| 大石桥市| 郓城县| 大城县| 耒阳市| 盐津县| 佛学| 曲阳县| 武隆县| 延川县| 内江市| 休宁县| 祥云县| 介休市| 寿宁县| 眉山市| 东方市| 怀集县| 永康市| 二连浩特市| 荆州市| 侯马市| 台东市| 沙洋县| 永新县| 龙海市| 哈巴河县| 安西县| 五原县| 长汀县| 昌吉市| 苏尼特左旗| 安西县| 微山县| 河东区| 盘山县| 远安县| 克山县| 仪征市| 岫岩| 韩城市| 平果县| 苍山县| 东光县| 云霄县| 托克逊县| 九江市| 津市市| 山阳县| 奎屯市| 普洱| 凤山市| 沧源| 陇南市| 双柏县| 明光市| 夏河县| 大同县| 阜新| 喀什市| 壤塘县| 太湖县| 泸定县| 临泉县| 中宁县| 岳阳县| 洞头县| 岗巴县| 明溪县| 措美县| 镇安县| 清水县| 富阳市| 习水县|