Hubble

Category archives for Hubble

“For the first time we can learn about individual stars from near the beginning of time. There are surely many more out there.” -Neil Gehrels We’ve come incredibly far in our quest to learn how the Universe came to be the way it is today. We can see out in space for tens of billions…

“One way or another the first stars must have influenced our own history, beginning with stirring up everything and producing the other chemical elements besides hydrogen and helium. So if we really want to know where our atoms came from, and how the little planet Earth came to be capable of supporting life, we need…

“We have chased away the clouds, the sky is all ‘rose.’” -Francois Hollande When you have a light curve with two different large, periodic dips in it, a binary star system is the likeliest explanation. The stars eclipse, and in the case where they’re so close their envelopes touch, they’re known as contact binaries. That,…

“The history of astronomy is a history of receding horizons.” -Edwin Hubble Over its more than 25 year lifetime, the Hubble Space Telescope has shown us what the Universe truly looks like. It’s done so in a myriad of ways, from planets to stars – dying and forming – to galaxies to gravity’s effects to…

“In the far, far future, essentially all matter will have returned to energy. But because of the enormous expansion of space, this energy will be spread so thinly that it will hardly ever convert back to even the lightest particles of matter. Instead, a faint mist of light will fall for eternity through an ever…

“…because that goal will serve to organize and measure the best of our energies and skills; because that challenge is one that we are willing to accept, one we are unwilling to postpone.” -John F. Kennedy The Hubble Space Telescope, for all of its scientific findings and how it revolutionized our understanding of the Universe…

“You may hate gravity, but gravity doesn’t care.” –Clayton Christensen If all we had were galactic rotation curves — like those measured by Vera Rubin — we would know that something was wrong with our picture of the Universe, but we wouldn’t know how. Two equally good explanations, that there was either a flaw in…

“Deep into that darkness peering, long I stood there, wondering, fearing, doubting, dreaming dreams no mortal ever dared to dream before.” -Edgar Allan Poe No matter where you look in the night sky, a powerful enough telescope appears to reveal points of light. Even if you find a region with no stars in the Milky…

“A bit of mould is a pleiad of flowers; a nebula is an ant-hill of stars.” -Victor Hugo In the distant future, about 7 billion years from now, our Sun will run out of all the nuclear fuel it’s capable of burning in its core. As it contracts under its own gravity, radiation becomes unable…

“Even with all the collected data we cannot say with 100% certainty that the ASASSN-15lh event was a tidal disruption event. But it is by far the most likely explanation.” -Giorgos Leloudas Last year, a record-shattering event occurred: we saw the brightest supernova ever observed in the Universe. It outshone the previous record holder by…