The U.S. space as agency NASA has released the first images captured by the James Webb Space Telescope, the most     1     (powerful) equipped telescope ever put into space. The Webb launched in December, 2021     2     a mission     3     (see) farther into space and farther back in time than ever before and observe faraway planets for signs of life.

One of the images shows some of the first galaxies (星系) ever to form, which means the Webb is seeing the galaxies that existed about 13 billion years ago. Additional     4     (photo) taken by the Webb show a cloud of gas and dust     5     stars are born, a distant planet’s atmosphere, and a dying star. This is just the beginning of     6     (it) mission, which     7     (expect) to last at least 5 to 10 years.

The Webb is the result of a $10 billion, 25-year project led by NASA and supported by other space agencies.     8     (name) after former NASA head James Webb, the telescope is about 100 times better than NASA’s Hubble Space Telescope, which is still operating after more than 30 years. The Webb collects and     9     (analyze) infrared light, using 18 mirrors covered in a thin layer of gold. The Webb also has a sun shield     10     size of a tennis court to help keep it cool.

NASA announced that it would make 366 precious images of the universe available to the public in April     1     (celebrate) the 30th anniversary (周年) of the Hubble Space Telescope’s launch into space.

    2     site is called “What Did Hubble See on Your Birthday?”. Internet users can find out what beautiful image     3     (take) on their birthday by the telescope (望远镜), as long as they select their birth dates on NASA’s     4     (office) website.

NASA launched the Hubble Space Telescope     5     April 24, 1990. “Hubble explores the universe 24 hours a day, 7 days a week. That     6     (mean) it has recorded some fascinating     7     (wonder) every day of the year, including on your birthday,” said the website.

In the past three decades, scientists     8     have never given up on their dream of space     9     (explore) have been given a brief look at our vast universe thanks to Hubble. During this period, the telescope has become an eye in the sky for astronomers     10     (hope) to explore secrets of the universe. And now, the public will also get a chance to look into the vast and beautiful universe.

Chinese scientists have contributed to the global effort     1     captured the world’s first image of Sagittarius A, the supermassive black hole at the center of the Milky Way galaxy, according to the Shanghai Astronomical Observatory of the Chinese Academy of Sciences, one of the     2    (participate) in the project.

Experts believe the image of Sagittarius A will help people better understand the extreme celestial objects     3    (call)black holes and the evolution of our galaxy.

Sagittarius A     4    (locate) about 27,000 light years away from our solar system. It has     5     estimated mass of more than 4 million times that of the sun. It’s about 24 million kilometers     6     diameter(直径).

The black hole is now mostly dormant and only     7    (occasional) absorbs nearby gas or dust, but it holds many mysteries that     8    (puzzle) scientists for decades, such as its birth and growth.

Black holes typically form when the nuclear fusion of a very massive star fizzles out     9     it collapses upon itself into a super dense celestial object.

The Event Horizon Telescope held a news conference on Thursday     10    (present) the mug shot of the behemoth lurking behind the clouds of dust and gas that surround the center of our home galaxy.

Space scientists say they have identified the most distant star ever recorded. Astronomers made the discovery with the Hubble Space Telescope     1     (operate) by the American space agency NASA. Researchers estimated the star was 50 to 100 times the mass of the sun, and     2     (million) of times brighter than the sun.

It takes billions of years for the light from distant stars     3     (reach) Earth. The team says the star’s light     4    (believe) to have traveled for 12.9 billion years before arriving in the planet. This means the star would have existed when the universe was about seven percent of     5     (it) current age. A member of the research team, Brian Welch, called the     6     (extreme) hot and bright star Earendel,     7     means the morning star or the rising light.

“We definitely just got lucky. Although scientists on Earth can now see its light, Earendel itself surely no longer exists. This is     8     such huge stars have short lives. The star probably existed for a few hundred million years before     9     (die) in an explosion,” Welch said. “Hubble has observed the light from the galaxy that dates back     10     about 400 years after the Big Bang,” he added.

On 15 May, the China National Space Administration (CNSA)       1    (say) that its Zhurong rover（探测器）had landed on Mars.

Zhurong is named after the god of fire in ancient Chinese mythology (神话). The rover       2     was sent to Mars on board the Tianwen-1 spacecraft took off in July 2020. Tianwen-1 has been moving around Mars since February this year,       3    (take) pictures of the surface to find the safest place for the rover       4    (land).

Zhurong landed in a part of Mars       5    (know) as Utopia Planitia. It is thought there might once have been sea there. Over the course of 90 Martian days, Zhurong will study the planet's surface. A day on Mars lasts about 24 hours and 39 minutes. The rover, which       6    (power) by solar panels (太阳能电池板), has cameras, a laser (激光)     7     a radar (雷达)．The radar will look for signs of water and ice up to 100 meters under the surface and the laser can be used to study         8     (rock) to see what they’re made of.

China has received worldwide praise for the       9    (success) landing. Thomas Zurbuchen, head of science at the US space agency NASA, said, “I look forward       10     the important influence this task will have on people’s understanding of Mars.

Do stars only appear at night? The answer is no. Venus(金星)is the only star     1     can be seen in daytime. It is the second     2    (bright) natural object, behind the earth's moon, in the night sky. Why is it so bright? First of all, Venus is the closest planet to the earth. Besides, it     3    (cover) with highly reflective clouds, which reflect about 70 percent of the sunlight     4    (strike) it.

If Venus is so bright and close to us, isn't it a better choice for human     5    (explore) than Mars? It is closer to the earth than Mars and it's closer to the earth     6     size. The closer distance to the sun means solar power would be easier     7    (generate) as well.

    8    , with a temperature of about 465°C on the surface. Venus is the hottest planet in our solar system! But scientists never give up and     9    (create) new computer equipment that can stand 480°C recently.     10     they expect next is to send a probe(探测器)to Venus by 2025.

Scientists showed the first-ever photograph of a black hole on April 10, 2019. The photo     1     (show) at press conferences held at the same time in Shanghai, Taipei, Tokyo, Washington DC, Brussels and Santiago. In the image, a central dark region is surrounded by a ring of light that looks     2     (bright) on one side than the other side.

The photo is the product of observations    3     (make) in April 2017 by the Event Horizon Telescope (EHT). The EHT is     4     global network of telescopes. Over 200     5     (research) were involved in the project. In their more than a decade’s attempt    6     (capture) an image of a black hole, scientists combined the power of eight radio telescopes around the world. This    7     (effective) creates a virtual telescope around the same size as the Earth itself.

This image reveals the black hole at the center of Messier 87 (M87), a massive galaxy in the nearby Virgo galaxy cluster(室女星系团). This black hole lies about 55 million lightyears from the Earth and its mass is 6.5 billion times    8     of the sun.

“We have seen what we thought was unseeable,” said Sheperd Doeleman, a Harward astronomer and project director of the EHT. It closely resembles what astronomers have expected, based on Einstein’s general theory of relativity. Since Einstein published this theory in 1915,     9     first predicted the existence of black holes, no one really    10     (see) what it looks like. This captured image is the first direct visual evidence that black hole exist.

A Long March-5 rocket,     1     (carry) the Chang’e-5 spacecraft, takes off from the Wenchang Spacecraft Launch Site on the coast of southern island province of Hainan on November 24,2020.

China’s Chang’e-5 probe( 探 测 器 ) decelerated and entered the lunar orbit on Saturday,     2    completed a vital step on its way to collect and return moon samples, the China National Space Administration (CNSA)     3    (announce).

After flying about 112 hours from Earth,     4     engine on the probe ignited (点火) when it was 400 km away from the surface     5     the moon at 8:58 p.m. and shut down after about 17 minutes, the CNSA said.

The probe performed the braking without incident and entered the lunar orbit     6    (successful ) according to the real-time monitoring data.

Chang’e-5 , which     7     (make) up of an orbiter, a lander, an ascender(上升器 ), and a returner, has carried out two orbital     8    (correction) during the Earth-Moon transfer, achieving its     9     (expect) goals.

Afterward, it will adjust the altitude and inclination (倾斜度) of its orbit around the moon. When the time is appropriate, it will land softly on the near side of the moon     10    (collect ) and return samples from the moon as planned.