The term quasar comes from quasi-stellar objects, a name that reflected our uncertainty about their nature. The first quasars were discovered solely because of their radio emissions, with no corresponding visual objects. This is surprising since quasars blaze with the light of trillions of stars. In recent observations, the Hubble examined a historical quasar named …
Don’t let the bright Moon deter you from seeing the one of the best meteor showers of the year. One of the best meteor showers of 2024 closes out the year this coming weekend. If skies are clear, watch for the Geminid meteors, peaking on the night of Friday into Saturday, December 13-14th. The Geminids …
Telescopes in space have a huge advantage over those on the ground: they can see the universe more clearly. The Earth’s atmosphere, weather conditions, and low-flying satellites don’t obscure their view. But space telescopes have a disadvantage too. They can’t be repaired, at least not since NASA’s Space Shuttle program ended in 2011. But next-generation …
Space Telescopes Could See a Second Life With a Servicing Mission Read More »
For the past thirty years, NASA’s Great Observatories – the Hubble, Spitzer, Compton, and Chandra space telescopes – have revealed some amazing things about the Universe. In addition to some of the deepest views of the Universe provided by the Hubble Deep Fields campaign, these telescopes have provided insight into the unseen parts of the …
MAUVE: An Ultraviolet Astrophysics Probe Mission Concept Read More »
When Oumuamua traversed our Solar System in 2017 it was the first confirmed Interstellar Object (ISO) to do so. Then in 2019, Comet 2l/Borisov did the same thing. These are the only two confirmed ISOs to visit our Solar System. Many more ISOs must have visited in our Solar System’s long history, and many more …
Here’s How Interstellar Objects and Rogue Planets Can be Trapped in the Solar System Read More »
The spacecraft for the Japanese-led X-ray Imaging and Spectroscopy Mission, or XRISM, undergoes acoustic testing in Japan in December 2022. Credit: JAXA The launch of a Japanese X-ray telescope and robotic lunar lander has been delayed to no earlier than August, and the launch schedule for another Japanese mission to return samples from a moon …
Japanese space science missions facing delays after H3 rocket failure Read More »
The Hubble Space Telescope, seen from the space shuttle Columbia at the end of a 2002 servicing mission. The observatory’s door is open in this picture. Credit: NASA Hardware problems that cropped up earlier this month on the Hubble Space Telescope, now approaching the 31st anniversary of its launch, are the latest signs the observatory …
NASA blames recent Hubble woes on aging hardware Read More »
The Hubble Space Telescope in the payload bay of space shuttle Atlantis during the last servicing mission in May 2009. Credit: NASA NASA has partially restored the Hubble Space Telescope to science mode after a software error temporarily halted observations, but engineers continue studying a problem that kept the telescope’s aperture door from closing and …
Hubble resumes science observations after software error Read More »
