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Interstellar
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- 1Voyager 1 Approaches One Light-Day From Earth▼Voyager 1 is 25.77 billion km/16.01 billion miles away from Earth and will reach 1 light-day from Earth in 45 days, 6 ho
Voyager 1, humanity's most distant spacecraft, is now 25.77 billion kilometres (16.01 billion miles) from Earth and is set to reach a distance of one light-day — the distance light travels in a day — in roughly 45 days. Its twin, Voyager 2, trails behind at 21.56 billion kilometres. Space watchers are marking the milestone as the probe continues its decades-long journey into interstellar space.
- 2Gargantua's black hole: the physics behind the image●Gargantua isn't a visual effect: almost everything on screen is dictated by gravity. What the shadow is, why the disk sh
Kip Thorne's black hole Gargantua from the film Interstellar is being revisited, with explanations that it was not a mere visual effect but a scientifically grounded rendering where gravity dictates nearly everything on screen. Discussions cover what the shadow is, why the accretion disk appears above and below the hole, the role of the photon ring, and details the filmmakers deliberately left out.
- 3Lagoon Nebula Stars in Astronomy Spotlight▼The Lagoon Nebula, classified as M8, serves as a profound example of an active star-forming region located approximately
Astronomy enthusiasts are sharing details about the Lagoon Nebula, also known as M8, an active star-forming region roughly 5,000 light-years from Earth in the constellation Sagittarius. The interstellar cloud is described as a complex environment shaped by high-energy radiation from massive young stars, illustrating how new stars are born within nebulae.
- 4Technologies for interstellar flight are already being studied●No starship is sitting on a launchpad — but the technologies for interstellar flight are already being studied. Laser sa
No starship is waiting on a launchpad, but researchers are actively developing the building blocks for interstellar travel. Work under way includes laser-driven light sails, fast precursor probes, fusion propulsion concepts, and missions that would use the sun's gravitational lens as a telescope. Engineers are also designing long-duration spacecraft able to survive decades in flight, laying groundwork for a first voyage to another star.