We've picked out the best space tech Prime Day deals still available as star projectors, drones, model rockets and Lego sets are still discounted.

Right now, you can even obtain the 2TB Samsung 990 EVO Plus SSD for just $129, a reduction from the usual price of $176. That is a 27% drop on one of the fastest and most dependable SSDs out there. With an offer like that, no wonder that the 990 EVO Plus is selling hotcakes and wearing the “Amazon’s Choice” badge.

Some major retailers raise the online prices of certain goods days or weeks before marking them down in seasonal sales events, the NBC News Price Tracker shows.

Expect big discounts on Hollywood-loved sunscreens, Sony headphones, Dyson vacuums and hair tools, Unwell Hydration and other bestselling products.

The 1More SonoFlow, our choice as the best budget headphones, are available from Amazon's Prime Day with a 20% discount that drops their price to just $60.