填空题

Twenty-four years and two days ago, on a Tuesday morning, the space shuttle Discovery (26) to low Earth orbit from Cape Canaveral, Florida. As NASA’s newest eye in the sky, the Hubble Space Telescope, is an (27) which can peer deep into the cosmos and capture the universe’s inhabitants in exquisite detail. It had taken (28) of design and planning to get the telescope ready for work. The next day, on April 25, astronauts delivered the telescope to space.
Then, scientists eagerly (29) Hubble to start revealing cosmic secrets. We all know what happened next. A flaw in the telescope’s (30) mirror meant the images weren’t sharp. (31) incredibly faint objects, such as very distant galaxies, wasn’t possible. It would be three years before the first of five servicing missions let astronauts correct the defect and (32) Hubble’s vision to what it should have been.
Since then, though, the Hubble space telescope has (33) delighted Earthlings with its breathtaking views of stars, galaxies, and our planetary neighbors. Its impact on science has been no less important. Among other discoveries, Hubble helped scientists determine that the universe is expanding at an (34) rate. This discovery, which happened in the late 1990s, is something we still can’t fully explain.
Here, (35) Hubble’s 24th launchiversary, are 25 images that might be slightly less familiar... and I’ve added one to grow on, just for good measure.