Search results
5 dni temu · Deep-sky objects are any objects that are made of multiple stars and are beyond our solar system. They’re usually extended objects, taking up a wider field of view than the pinpricks of starlight, and they take many different forms, ranging from balls of stars to tenuous glowing plasma.
3 dni temu · The universe is all of space and time [a] and their contents. [10] It comprises all of existence, any fundamental interaction, physical process and physical constant, and therefore all forms of energy and matter, and the structures they form, from sub-atomic particles to entire galactic filaments.
3 dni temu · The nearest star to the Earth, apart from the Sun, is Proxima Centauri, 4.2465 light-years (40.175 trillion kilometres) away. Travelling at the orbital speed of the Space Shuttle, 8 kilometres per second (29,000 kilometres per hour), it would take about 150,000 years to arrive.
4 dni temu · Arp 142's Penguin and Egg scene comprises two interacting galaxies located around 326 million light-years from Earth in the constellation of Hydra.
2 dni temu · At the end of this epoch, the spherical volume of space which will become the observable universe is about 300 light-years in radius, baryonic matter density is on the order of 4 grams per m 3 (about 0.3% of sea level air density)—however, most energy at this time is in electromagnetic radiation. Photon epoch: 10 s ~ 370 ka: 10 9 K ~ 4000 K
5 dni temu · (A light-year is the distance traveled by light in one year and is roughly 9,460,000,000,000 km [5,880,000,000,000 miles].) His values have held up remarkably well over the years.
4 dni temu · Discover essential universe and space vocabulary. Learn key terms and phrases to enhance your space-related discussions with our comprehensive guide and imagery.
