Ruang angkasa, atau yang biasa kita sebut space atau outer space dalam bahasa Inggris, merupakan sebuah hamparan luas tanpa batas yang membentang tepat di luar atmosfer Bumi. Tempat misterius ini mencakup seluruh alam semesta (universe) beserta segala isinya, mulai dari miliaran benda langit seperti bintang dan planet, hingga berbagai fenomena fisik memukau yang terus terjadi di dalamnya.
Uniknya, ruang angkasa didominasi oleh kondisi vakum atau hampa udara yang hampir sempurna. Alih-alih berisi udara seperti di Bumi, ruang super luas ini justru dipenuhi oleh plasma hidrogen, helium, serta pancaran radiasi elektromagnetik yang bergerak bebas di antara sunyinya kosmos.
Kosakata dalam Dunia Luar Angkasa
Menguasai kosakata bertema astronomi dan luar angkasa (space terminology) sangat penting untuk memperluas cakrawala bahasa Inggris kamu, terutama saat membaca jurnal sains, menonton film fiksi ilmiah (sci-fi), atau menghadapi sesi Reading dan Listening pada ujian internasional seperti IELTS dan TOEFL. Berikut adalah 100 lebih Kosakata dalam Dunia Luar Angkasa yang disusun secara rapi ke dalam tabel interaktif beserta arti dan contoh kalimat aplikatifnya:
| Kosakata Ruang Angkasa | Artinya | Contoh Kalimat |
| Universe | Alam semesta | The universe contains billions of galaxies that we have yet to explore. |
| Galaxy | Galaksi | Our solar system is located in the Milky Way galaxy. |
| Solar System | Tata surya | Space agencies use deep-space probes to map the outermost cold regions of the solar system. |
| Star | Bintang | The Sun is the closest star to Earth. |
| Planet | Planet | Mars is known as the Red Planet due to its iron-rich soil. |
| Satellite | Satelit | The Moon is a natural satellite that orbits the Earth. |
| Asteroid | Asteroid | An asteroid belt is located between the orbits of Mars and Jupiter. |
| Comet | Komet | Halley’s Comet can be seen from Earth every 75 to 76 years. |
| Meteor | Meteor | We watched a stunning meteor shower in the night sky last night. |
| Meteorite | Meteorit | The museum displays a massive meteorite found in Antarctica. |
| Orbit | Orbit / Mengorbit | The International Space Station completes one full orbit around the Earth every 90 minutes. |
| Gravity | Gravitasi | Without gravity, everything would float around in space. |
| Atmosphere | Atmosfer | The Earth’s atmosphere protects us from harmful solar radiation. |
| Astronaut | Astronaut | Becoming an astronaut requires years of intense physical training. |
| Cosmonaut | Kosmonaut (Astronaut Rusia) | Yuri Gagarin was the first Russian cosmonaut to travel into space. |
| Spacecraft | Wahana antariksa | The spacecraft successfully landed on the surface of Mars. |
| Rocket | Roket | The rocket was launched from the Kennedy Space Center. |
| Spacesuit | Baju luar angkasa | An astronaut’s spacesuit provides oxygen and regulates temperature. |
| Telescope | Teleskop | Scientists use the Hubble Telescope to capture images of deep space. |
| Nebula | Nebula (Awan gas & debu) | A nebula is often referred to as a star nursery. |
| Black Hole | Lubang hitam | Einstein’s theory of general relativity predicted that a dying massive star could collapse into a black hole. |
| Supernova | Supernova (Ledakan bintang) | A supernova occurs when a massive star reaches the end of its life. |
| Constellation | Rasi bintang | Orion is one of the most recognizable constellations in the winter sky. |
| Milky Way | Bimasakti | On a clear night, you can see the faint band of the Milky Way. |
| Cosmos | Kosmos | Ancient philosophers studied the cosmos to understand human existence. |
| Astronomy | Astronomi (Ilmu bintang) | She decided to major in astronomy because of her love for stargazing. |
| Astrophysics | Astrofisika | Astrophysics deals with the physics of stellar environments. |
| Alien | Makhluk asing / Asing | Many movies depict aliens invading the Earth. |
| Extraterrestrial | Luar bumi | Scientists are searching for signs of extraterrestrial life on distant moons. |
| Space Station | Stasiun luar angkasa | Astronauts live and work on the International Space Station. |
| Launchpad | Landasan peluncuran | The rocket stood tall on the launchpad before liftoff. |
| Liftoff | Tinggal landas | The countdown reached zero, and we witnessed a flawless liftoff. |
| Orbiting | Sedang mengorbit | There are thousands of man-made satellites orbiting the planet. |
| Deep Space | Luar angkasa jauh | Voyager 1 has traveled deeper into deep space than any other human object. |
| Light-year | Tahun cahaya | Proxima Centauri is about 4.2 light-years away from Earth. |
| Eclipse | Gerhana | We wore special glasses to watch the total solar eclipse. |
| Solar Flare | Suar surya | A powerful solar flare can disrupt satellite communications on Earth. |
| Gravity Well | Sumur gravitasi | Escaping Earth’s gravity well requires an immense amount of fuel. |
| Zero Gravity | Nol gravitasi | In zero gravity, liquid forms perfect floating spheres. |
| Microgravity | Mikrogravitasi | Astronauts experience microgravity, which makes them feel weightless. |
| Lunar | Terkait bulan | The Apollo missions achieved the first successful lunar landing. |
| Solar | Terkait matahari | The space probe is powered by advanced solar panels. |
| Celestial | Benda langit | Stars, planets, and moons are all examples of celestial bodies. |
| Interstellar | Antarbintang | Voyager 1 became the first spacecraft to enter interstellar space. |
| Interplanetary | Antarplanet | Interplanetary travel to Mars will take at least six months. |
| Intergalactic | Antargalaksi | Traveling across intergalactic distances is currently impossible for us. |
| Exoplanet | Eksoplanet (Planet luar TS) | Kepler telescoped discovered a new habitable exoplanet. |
| Rover | Kendaraan penjelajah | The Perseverance rover is actively searching for signs of ancient life on Mars. |
| Probe | Robot penyelidik | The space probe sent back valuable data about Saturn’s rings. |
| Crater | Kawah | The Moon’s surface is covered with thousands of craters. |
| Dust Storm | Badai debu | A global dust storm can completely cover the surface of Mars. |
| Void | Kevakuman / Kosong | Space is a vast, cold void with no air to breathe. |
| Vacuum | Vakum | Sound cannot travel through the vacuum of space. |
| Radiation | Radiasi | Space suits shield astronauts from deadly cosmic radiation. |
| Spaceship | Kapal luar angkasa | The sci-fi novel describes a massive spaceship traveling to another galaxy. |
| Alien Invasion | Invasi makhluk asing | The film tells a thrilling story about an alien invasion. |
| Stargazing | Mengamati bintang | We spent the weekend stargazing in the mountains far from city lights. |
| Mission Control | Pusat kendali misi | Mission Control monitored the spacecraft’s vital signs during landing. |
| Countdown | Hitung mundur | Everyone held their breath during the final countdown. |
| Satellite Dish | Antena parabola | The observatory uses a giant satellite dish to catch radio signals. |
| White Dwarf | Katai putih | After expanding, our Sun will eventually shrink into a white dwarf. |
| Red Giant | Raksasa merah | When a star runs out of hydrogen fuel, it turns into a red giant. |
| Neutron Star | Bintang neutron | A neutron star is incredibly dense, packing massive weight into a small size. |
| Pulsar | Pulsar (Bintang berdenyut) | The observatory detected rapid radio pulses emitted by a distant pulsar. |
| Quasar | Kuasar (Inti galaksi aktif) | A quasar is one of the brightest and most distant objects in the universe. |
| Dark Matter | Materi gelap | Dark matter makes up most of the mass in the universe, but we cannot see it. |
| Dark Energy | Energi gelap | Scientists believe dark energy is causing the universe to expand faster. |
| Cosmic Ray | Sinar kosmik | Cosmic rays originate from outside our solar system. |
| Space Debris | Sampah luar angkasa | Space debris poses a significant threat to active satellites. |
| Space Junk | Sampah antariksa | Dead satellites turn into dangerous space junk orbiting the Earth. |
| Telemetry | Telemetri (Data jarak jauh) | Engineers analyzed the telemetry data to fix the engine malfunction. |
| Payload | Muatan roket | The rocket carries a weather satellite as its main payload. |
| Booster | Roket pendorong | The rocket detaches its boosters a few minutes after launch. |
| Capsule | Kapsul antariksa | The astronauts returned safely inside a splashdown capsule. |
| Space Shuttle | Pesawat ulang-alik | NASA retired its space shuttle program in 2011. |
| UFO | Benda terbang tak dikenal | The pilot reported seeing a strange UFO hovering near the clouds. |
| Telescope Array | Jajaran teleskop | The new telescope array will allow astronomers to see deeper into the cosmos. |
| Re-entry | Masuk kembali ke atmosfer | The spacecraft’s heat shield glows intensely during atmospheric re-entry. |
| Splashdown | Pendaratan di air | The capsule made a perfect splashdown in the Pacific Ocean. |
| Gravity Assist | Bantuan gravitasi | Voyager used Jupiter’s weight for a gravity assist to speed up its journey. |
| Wormhole | Lubang cacing | In science fiction, a wormhole acts as a shortcut through space and time. |
| Meteoroid | Meteoroid | A meteoroid is smaller than an asteroid but larger than a grain of dust. |
| Light Speed | Kecepatan cahaya | Nothing with mass can travel faster than light speed. |
| Event Horizon | Cakrawala peristiwa | Once you cross the event horizon, you can never escape the black hole. |
| Nebula Cloud | Awan nebula | The James Webb telescope captured stunning details of the nebula cloud. |
| Stellar | Terkait bintang | The galaxy is filled with intense stellar activity. |
| Solar Wind | Angin surya | Earth’s magnetic field deflects the continuous stream of solar wind. |
| Asteroid Belt | Sabuk asteroid | Ceres is the largest object located within the asteroid belt. |
| Habitable Zone | Zona layak huni | Earth sits perfectly within our star’s habitable zone. |
| Goldilocks Zone | Zona Goldilocks | Finding a planet in the Goldilocks zone increases the chances of finding water. |
| Teraforming | Pengubahan iklim planet | Terraforming Mars would require creating a thick atmosphere over centuries. |
| Colonization | Kolonisasi / Penjelajahan | Space Elon Musk frequently talks about the colonization of Mars. |
| Galaxy Cluster | Gugus galaksi | Gravity holds thousands of galaxies together in a galaxy cluster. |
| Space Probe | Satelit pengamat luar angkasa | The Voyager space probe carries a golden record representing humanity. |
| Docking | Penggandengan wahana | The cargo spacecraft completed a manual docking with the space station. |
| Spacewalk | Berjalan di luar angkasa | The astronauts had to perform a five-hour spacewalk to fix the solar array. |
| Space Tourism | Wisata luar angkasa | Commercial companies are paving the way for civilian space tourism. |
| Aurora | Aurora (Cahaya kutub) | Solar particles colliding with the atmosphere create the beautiful aurora. |
| Airglow | Pendaran udara udara | The faint airglow makes the night sky look slightly green from orbit. |
| Skywatching | Mengamati langit | Bring your binoculars tonight because it is a great night for skywatching. |
| Light Pollution | Polusi cahaya | Light pollution in cities makes it difficult to see the stars clearly. |
| Observatory | Observatorium | The observatory was built on top of a mountain to get a clearer view. |
| Flight Path | Jalur penerbangan | Engineers carefully mapped out the rocket’s flight path. |
| Orbital Period | Periode orbit | The moon’s orbital period around the Earth is approximately 27 days. |
| Escape Velocity | Kecepatan lepas | A spacecraft must reach escape velocity to break free from Earth’s gravity. |
| Aphelion | Titik terjauh dari matahari | Earth reaches its aphelion in July, when it is farthest from the Sun. |
| Perihelion | Titik terdekat dari matahari | During perihelion, Earth is closest to the Sun in its elliptical orbit. |
| Tidal Wave | Gelombang pasang surut | The gravity of the moon causes daily tidal waves on Earth. |
| Astrobiology | Astrobiologi | Astrobiology combines biology and astronomy to study potential space life. |
| Big Bang | Ledakan Dahsyat | The Big Bang theory explains the origin and expansion of our universe. |
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Menghafal kosakata tematik yang spesifik seperti dunia astronomi dan sains luar angkasa adalah kunci utama untuk meningkatkan skor vocabulary kamu saat menghadapi ujian formal seperti TOEFL, IELTS, maupun SAT. Namun, sekadar menghafal daftar kata tidaklah cukup jika kamu tidak tahu bagaimana cara menerapkannya secara natural dalam tulisan akademis (academic writing) maupun percakapan formal.
Di ICAN Learning Centre (ILC), para mentor-mentor berpengalaman berkomitmen penuh untuk membimbing kamu dalam menguasai ribuan kosakata lanjutan, melatih ketajaman membaca teks ilmiah (reading comprehension), hingga menyusun argumen yang logis dan elegan. Mari bergabung dengan ILC sekarang juga dan investasikan masa depan akademis serta karir internasional kamu bersama kami! Yuk, segera daftarkan diri kamu di ILC hari ini!
