And if you miss seeing Comet NEOWISE this time, no need to worry. Now the best views are to be had in the early hours of the morning but, as the month progresses, the chance of seeing it in the early evening improves - so long as the weather plays ball and the sky is nice and clear.
NEOWISE is the best and brightest comet visible in the northern hemisphere since Comet Hale-Bopp in 1997, he said.
With clear skies overhead and Comet NEOWISE now visible just after sunset, this week will bring great viewing opportunities for those wanting to try and see a glimpse of the comet.
Comets, and their tails, are comprised of dust, gas and plasma, with almost all known comets having two tails, one comprised of dust and the other comprised of ions.
The comet is about 26 million miles way from us and is about 3 miles across. According to Joseph Masiero, Neowise deputy principal investigator at Nasa's Jet Propulsion Laboratory, Neowise is about 5 kilometres across and was formed around 4,6 billion years ago, around the same time as the birth of the solar system.
"And yet the comet has managed to survive this intense roasting".
Observers all over the world are racing to see the natural fireworks display before the comet speeds away into the depths of space. About an hour after sunset, look northwest just below the Big Dipper, this is the current location of the comet.
"Through about the middle of the month, the comet is visible around 10 degrees above the northeastern horizon (the width of your outstretched fist) in the hour before dawn", the space agency added. After July it will fade away very fast and will not be visible to the unaided eye.
"Comets are notoriously unpredictable, so it's impossible to know if this one will remain so easy to spot, but if it does, it should become easier for more people to observe as July goes on", NASA said.