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Hace 1 día · The chronology of the universe describes the history and future of the universe according to Big Bang cosmology. Research published in 2015 estimates the earliest stages of the universe's existence as taking place 13.8 billion years ago, with an uncertainty of around 21 million years at the 68% confidence level.
Hace 4 días · Isaac Newton. universo. teoría de la relatividad. Albert Einstein. energía oscura. materia oscura. cosmología. origen del universo. expansión del universo. Register now. Para entender cómo es el...
Hace 19 horas · In astronomy, dark matter is a hypothetical form of matter that appears not to interact with light or the electromagnetic field. Dark matter is implied by gravitational effects which cannot be explained by general relativity unless more matter is present than can be seen.
Hace 2 días · The observable universe contains an estimated 10 22 to 10 24 stars. Only about 4,000 of these stars are visible to the naked eye—all within the Milky Way galaxy. A star's life begins with the gravitational collapse of a gaseous nebula of material largely comprising hydrogen, helium, and trace heavier elements.
Hace 5 días · Ciencia. 29 May 2024 | 16:34 h. Telescopio James Webb de la NASA fotografió a 3 galaxias que le dieron origen al universo. El telescopio James Webb, lanzado al espacio por la NASA en Navidad del...
Hace 3 días · Dicho de otra manera, si el universo tiene 13.000 millones de años, eso significa que estamos observando la galaxia cuando el cosmos apenas tenía 2% de su edad actual.
Hace 4 días · In keeping with the collaboration’s standard naming practice, the galaxies are now known as JADES-GS-z14-0 and JADES-GS-z14-1, the former being the more distant of the two. In addition to being the new distance record holder, JADES-GS-z14-0 is remarkable for how big and bright it is. JWST measures the galaxy at over 1,600 light-years in diameter.
