scientists think so, especially after the discovery of new fast radio bursts (FRBs 快速射电暴) from deep space in January.FRBs are short bursts of radio waves that come from far outside our galaxy (星系 ……

, in the night sky. Why is it so bright?First of all, Venus is the closest planet to Earth. It is also...金星为什么这么亮？Do stars only appear at night? The answer is no. Venus (金星) is the one and only star ……

?____________________________________________________________________________________Day  4Day  4Bright bursts from our closest ... (P6)Answer the questions:1. What do we... from our closest ... (P6)Answer the questions:1. What do we know about solar flares?A. They happen ……

as much as a gram may make a flash as bright as a bright star. A really spectacular flash will come... surface on many occasions.Although clear skies are normally the most desirable for star gazing ……

, the discovery of new fast radio bursts (FRBs, 快速射电暴) from deep space got many to ask it again....First discovered in 2007, FRBs are short bursts of radio waves coming from far outside the Milky Way (银河 ……

.The comets of the Oort Cloud are thought to have originated from much closer to our star. But they were... to have originated from much closer to our star. But they were then thrown out to the edges ……

们都出来活动啦！In the springtime, animals come alive! The sun shines brighter, the air feels warmer, and nature bursts (爆发... and lakes, frogs croak (呱呱叫) happily, while ducks swim freely. Bees buzz from flower to flower. Butterflies ……

star” as it is colder and shines 200 times dimmer (更加暗淡的) than our sun. Scientists do not normally.... Scientists from a Belgian research team have found seven Earth-size planets 40 light-years away from ……

WASHINGTON — Cell telephone users can blame another factor for cutting off their conversations several times a year — bursts of microwave energy from the sun, a team at Lucent Technologies' Bell Labs ……

we learn about Oumuamua’s discovery from Paragraphs 2-3?A. It entered our solar system in 2017.B... our most powerful telescopes at the night sky we see stars, planets, satellites, comets, meteors (流星 ……

is it so bright?First of all, Venus is the closest planet to Earth. Also, highly reflective (高度.... It will be shining at its brightest in the morning sky on April 30.Venus is the second planet from ……

Star light, star bright,First star I see tonight.I wish I may, I wish I might,Have the wish I wish tonight. ……

Star light, star bright,First star I see tonight.I wish I may, I wish I might,Have the wish I wish tonight. ……

. As the kids make their way toward the bright star, they face danger from wild cats, evil (邪恶的) kings and even... Phoebe, as well as their friend Sumar. As the kids make their way toward the bright star, they face ……

they are far away from us. The sun is a star. But some stars are much bigger than the sun. So many stars!数不...不是星星It’s lucky to see a shooting star (流星). But they are not really stars at all. They are tiny rocks from ……