Suchergebnisse
Suchergebnisse:
Vor 5 Stunden · Mass–energy emitted as gravitational waves during the most energetic black hole merger observed until 2020 (GW170729) 8.8×10 47 J GRB 080916C – formerly the most powerful Gamma-Ray Burst (GRB) ever recorded – total isotropic energy output estimated at 8.8 × 10 47 joules (8.8 × 10 54 erg), or 4.9 times the Sun's mass turned to energy.
Vor einem Tag · By comparison, the Antarctic ice sheet on Earth has a mass of about 4 × 10 18 kg, and Mars's south polar cap contains about 10 16 kg of water. The origin of the ice on Mercury is not yet known, but the two most likely sources are from outgassing of water from the planet's interior and deposition by impacts of comets.
- 47.36 km/s
- 58.646 d, 1407.5 h
- 10.892 km/h (3.026 m/s)
- trace (≲ 0.5 nPa)
Vor 5 Stunden · At this rate, the Sun has so far converted around 100 times the mass of Earth into energy, about 0.03% of the total mass of the Sun. The Sun will spend a total of approximately 10 to 11 billion years as a main-sequence star before the red giant phase of the Sun. [134] At the 8 billion year mark, the Sun will be at its hottest point according to the ESA's Gaia space observatory mission in 2022.
Vor einem Tag · Pluto has roughly one-sixth the mass of Earth's moon, and one-third its volume. Pluto has a moderately eccentric and inclined orbit, ranging from 30 to 49 astronomical units (4.5 to 7.3 billion kilometers ; 2.8 to 4.6 billion miles ) from the Sun. Light from the Sun takes 5.5 hours to reach Pluto at its orbital distance of 39.5 AU (5.91 billion km; 3.67 billion mi).
Vor 5 Stunden · It has been hypothesized that a gamma-ray burst in the Milky Way, pointing directly towards the Earth, could cause a mass extinction event. The Late Ordovician mass extinction has been hypothesised by some researchers to have occurred as a result of such a gamma-ray burst.
Vor 5 Stunden · Observations on Earth and numerical modeling have shown that a crater-forming impact can result in the creation of a long-lasting hydrothermal system when ice is present in the crust. For example, a 130 km large crater could sustain an active hydrothermal system for up to 2 million years, that is, long enough for microscopic life to emerge, [34] but unlikely to have progressed any further down ...
Vor einem Tag · The history of life on Earth traces the processes by which living and fossil organisms evolved, from the earliest emergence of life to present day. Earth formed about 4.5 billion years ago (abbreviated as Ga, for gigaannum) and evidence suggests that life emerged prior to 3.7 Ga. [1] [2] [3] The similarities among all known present-day species ...
