Tekno Negatif
Misteri Antariksa: Apakah Venus Memakan Bulannya Sendiri?
Tim peneliti UC Riverside بقيادة Stephen R. Kane memodelkan orbit bulan hipotetis Venus dan menemukan bahwa tarikan gravitasi Matahari serta gravitasi kuat Venus kemungkinan menyebabkan bulan tersebut spiral ke dalam dan hancur. Syarat kelangsungan bulan sangat sempit—harus terbentuk saat rotasi Venus cepat (<12 jam/hari) dan massanya tidak terlalu besar—kondisi yang dianggap tidak realistis di masa awal Venus. Peneliti berharap misi NASA DAVINCI dapat mendeteksi jejak kimiawi puing bulan di atmosfer Venus sebagai bukti tidak langsung.
Poin-Poin Utama
- Venus and Merkurius are only planets in Tata Surya without natural satellites.
- Venus shares similar size, mass, rock composition, and distance to Matahari with Bumi.
- Research led by Stephen R. Kane from Universitas California, Riverside used computer simulations to test moon formation hypotheses.
- Simulations modeled gravitational interactions between Venus, hypothetical moon, and Matahari over miliaran tahun.
- Moon orbit around Venus would reverse direction and spiral inward rather than drift safely outward.
- Venus strong gravity would tear apart and destroy the moon.
- Heavier moons would destroy faster because massive moons drain Venus rotation efficiently.
- Moon survival requires Venus rotation period under approximately 12 jam during moon formation.
- Surviving moon mass cannot exceed approximately our Bulan mass.
- Ideal conditions for moon survival contradict estimates of early Venus conditions.
- Direct observational evidence for events miliaran tahun ago remains very difficult with current telescopes.
- Researchers hope to detect indirect chemical traces from moon debris in Venus atmosphere.
- NASA DAVINCI mission aims to measure detailed Venus atmospheric composition.
- DAVINCI stands for Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging.
- Research published as pre-print paper on arXiv repository.
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