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GÜNÜN PARŞÖMENİ · 28 EYLÜL 2026 · UZAY ARAŞTIRMALARI VE YÖRÜNGE MÜHENDİSLİĞİ

Dünya, Juice uzay aracına Jüpiter yolunda yeni bir itiş sağlıyor

Earth Gives Juice Another Push Towards Jupiter

C1 · 4 dakikalık okuma · Kaynak: European Space Agency, 21 Eylül 2026

Metin

ESA’s Jupiter Icy Moons Explorer, Juice, is using a close Earth flyby to reshape its long route towards Jupiter without consuming enormous amounts of fuel. On 28 September, the spacecraft will pass within 8,640 kilometres of Earth, changing direction by about 20 degrees and gaining roughly 3.5 kilometres per second. This gravity assist prepares Juice for another Earth encounter in 2029 and arrival at Jupiter in 2031. Operators began a navigation campaign in August, although only one small correction had been required when ESA published its report. The passage also creates scientific opportunities and operational constraints. Juice will rely on batteries while crossing Earth’s shadow, so teams must prioritise observations. Its ten instruments will study Earth and the Moon, calibrate their measurements and test analysis methods before reaching Jupiter’s icy moons. The spacecraft will also sample Earth’s magnetotail and trial a technique intended to improve optical navigation around distant moons.

Özet ve soru Prometheus’a aittir. Haberin tamamı: European Space Agency ↗

Beş ifade

  • gravity assist: kütle çekiminden yararlanarak hız ve yön değiştirme manevrası
  • reshape a route: bir rotayı yeniden biçimlendirmek
  • navigation campaign: seyrüsefer planlama ve düzeltme süreci
  • operational constraint: operasyonel kısıt
  • optical navigation: görüntülere dayalı optik seyrüsefer

YDS mini sorusu

Why is Juice making repeated planetary flybys instead of travelling directly to Jupiter?

  1. To remain close enough to Earth for its instruments to transmit every observation without delay
  2. To adjust its speed and path while preserving fuel needed for operations around Jupiter and Ganymede
  3. To avoid using its scientific instruments until it has entered orbit around an icy moon
  4. To replace a launch vehicle that failed to provide any velocity when the mission began
  5. To collect enough solar energy to operate permanently without batteries in deep space
Cevabı ve açıklamasını göster

Doğru cevap: B

Doğrudan uçuş hem hızlanmak hem de Jüpiter’de yavaşlamak için çok büyük miktarda yakıt gerektirirdi. Gezegenlerin kütle çekimi Juice’ın hızını ve yönünü düşük yakıt tüketimiyle değiştirerek Jüpiter ve Ganymede yörüngeleri için yakıt bırakıyor; doğru cevap B’dir.

Planetary gravity changes Juice’s velocity and trajectory almost without fuel, conserving its reserves for entering orbit around Jupiter and later Ganymede.

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