The James Webb Space Telescope’s infrared view has transformed our view of a large barred spiral galaxy, revealing its skeleton of dust illuminated by the glow of young stars. Visible-light images of NGC 1559, such as those taken by the Hubble Space Telescope, show a glowing vortex of light with bright, young star clusters spread … Read more
A survey of more than 1,500 supernovae conducted by the Dark Energy Camera has placed strong constraints on the accelerating expansion of the universe. The results suggest that the mysterious force driving this cosmic acceleration, dark energy, can change over time and vary in density, challenging the standard model of cosmology. Related: Dark energy remains … Read more
The night sky of 2023 yielded many astonishing sights, from bright, fiery comets to extraordinary aurorae, unexpected meteor impacts on the moon, newly discovered supernovae – and even an astronaut’s lost tool bag floating through space. Here are some of Space.com’s most memorable skywatching attractions from this year. New year, new comet A long exposure … Read more
Two supernovasS in a galaxy, and a galaxy so far away that we see it as it was 10 billion years ago, could be crucial in helping to reveal the expansion rate of the universe. This is a measurement that has caused some tension within the scientific community. The galaxy and the two supernovae were … Read more
Some of the largest, most intense regions of star formation are found in the smallest galaxies. Scientists think this is because stars that reach the end of their lives in so-called dwarf galaxies are more likely to turn into black holes rather than explode. supernovas. The contrast is so stark, the team says, that dwarf … Read more