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Mathematics formulas

Sunrise Spring from Spyro: Year of the dragon.

The first image of a black hole, from the galaxy Messier 87

April 10, 2019

Summer Forest

The First Galaxies: What We Know And What We Still Need To Learn

“As we look farther back in time, we find that younger galaxies formed stars at faster rates than galaxies do today. We can measure the star-formation rate, and find that at earlier and earlier times, it was more intense. But then we find it hits a peak when the Universe is about two billion years old. Go younger than that, and the rate goes down again.”

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 of light years, to galaxies as they were when the Universe was only a few percent of its present age. We can see how galaxies evolve, merge and the stars inside change. And we can see to even before that, when no stars or galaxies existed at all. But how did we get from there to here? There are still plenty of gaps in the story. We’ve never seen the first stars or galaxies; we’ve never witnessed the start of cosmic reionization; we’ve never seen the star formation rate jump from zero to a real, finite number. Yet with James Webb and WFIRST on the horizon, these gaps in our knowledge may – if we’re lucky – all disappear.

Come get the story on what we know about the first galaxies, and what we hope and have left to still learn!

Close up of Space Shuttle Atlantis docked to the ISS. 🚀✨

hi. happy holidays. I'm going to start my college next month. I'm generally a messy student. I have a hard time managing my schedules and notes. I recently started following some studyblrs. but I'm still lost. I could really use some advice right now. love your studyblr btw.

Helloo! Happy holidays as well :-) Here are a few links that might help:

how to improve your handwriting

balancing study and work

whats in my bag

my favourite stationery

back to school basic supplies

how I stay motivated

tips on maintaining motivation

how to start a studyblr

how to take effective class or lecture notes

how to take notes from a textbook

how to memorise information effectively

my note-taking method

my notebook system

how to write faster

how I organise my binders

good habits to implement

how to study (my method)

how to get ahead in school

dealing with stress

productivity and time management applications

how to remove distractions

Here are some printables that might help you get organised:

2018 monthly planner printables

2018 student printables (2018 overview + calendar, daily + weekly + monthly planner, 30 habit tracker, class overview and timed worklog)

weekly study schedule

note-taking printables (dotted, grid, lined, cornell method)

exam revision printable pack (revision checklist, formulas + definitions sheet, essay + project planner, weekly schedule)

studying printable pack

ultimate student organiser pack

study and revision pack

pomodoro tracker

2018 student planner

2018 weekly planner

grade and assessment planner pack

essay guide and planner pack

student finance planner

note-taking printables (cornell, lecture, dotted, grid, etc)

goal and habit planner

I hope this helps!! Good luck with everything and thank you xx

Lmao: What AI actually is.

On September 9th 1995, the legendary Playstation console launched in North America!

A stunning view of the planet at night from an altitude of 240 miles, it was recorded on March 28, 2012. The lights of Moscow, Russia are near picture center and one of the station’s solar panel arrays is on the left.

Image Credit: ISS Expedition 30, NASA