Từ vựng:

1. Galaxy (/ˈɡæləksi/)
– Nghĩa tiếng Việt: Ngân hà
– Explanation: A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
– Example: The Milky Way is a galaxy that contains our Solar System.

2. Universe (/ˈjuːnɪvɜːrs/)
– Nghĩa tiếng Việt: Vũ trụ
– Explanation: All existing matter and space considered as a whole; the cosmos.
– Example: There are billions of galaxies in the universe.

3. Astronaut (/ˈæstrənɔːt/)
– Nghĩa tiếng Việt: Nhà du hành vũ trụ
– Explanation: A person who is trained to travel in a spacecraft.
– Example: Neil Armstrong was the first astronaut to walk on the moon.

4. Comet (/ˈkɒmɪt/)
– Nghĩa tiếng Việt: Sao chổi
– Explanation: A celestial object consisting of a nucleus of ice and dust and, when near the sun, a ‘tail’ of gas and dust particles pointing away from the sun.
– Example: The appearance of a comet is often considered to be a portent of doom.

5. Meteor (/ˈmiːtiər/)
– Nghĩa tiếng Việt: Sao băng
– Explanation: A small body of matter from outer space that enters the earth’s atmosphere, appearing as a streak of light.
– Example: We watched the meteor shower from the top of the hill.
6. Satellite (/ˈsatəlaɪt/)
– Nghĩa tiếng Việt: Vệ tinh
– Explanation: An artificial body placed in orbit around the earth or moon or another planet in order to collect information or for communication.
– Example: Most television signals are now relayed by satellite.

7. Orbit (/ˈɔːbɪt/)
– Nghĩa tiếng Việt: Quỹ đạo
– Explanation: The regularly repeated elliptical course of a celestial object or spacecraft about a star or planet.
– Example: The earth takes one year to complete one orbit around the sun.

8. Spacecraft (/ˈspeɪskrɑːft/)
– Nghĩa tiếng Việt: Tàu vũ trụ
– Explanation: A vehicle used for traveling in space.
– Example: The spacecraft is due to land on Mars next month.
9. Astronomy (/əˈstrɒnəmi/)
– Nghĩa tiếng Việt: Thiên văn học
– Explanation: The study of objects and matter outside the earth’s atmosphere and of their physical and chemical properties.
– Example: Astronomy is one of the oldest sciences.

10. Nebula (/ˈnɛbjʊlə/)
– Nghĩa tiếng Việt: Tinh vân
– Explanation: A cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter.
– Example: The Orion Nebula is the closest star formation region to Earth.
*Exercise: Fill in the blank with the suitable word*
1. The Andromeda ___ is on a collision course with our own.
2. The ___ and its mysteries have always fascinated humans.
3. John Glenn was a famous American ___.
4. Halley’s ___ is visible from Earth every 76 years.
5. The ___ shower last night was spectacular!
6. This ___ enables us to receive television broadcast from around the globe.
7. The moon ___ the earth approximately every 27.3 days.
8. The ___ will carry the astronauts safely back to Earth.
9. He is studying ___ at university.
10. The ___ had a gaseous tail visible to the naked eye.
*Answer key*:
1. Galaxy
2. Universe
3. Astronaut
4. Comet
5. Meteor
6. Satellite
7. Orbit
8. Spacecraft
9. Astronomy
10. Nebula