حملة "100 يوم صحة" تقدم أكثر من 43 مليونا و505 آلاف خدمة مجانية فى 27 يوما - اليوم السابع



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Physicists create the first fully mechanical qubit - Phys.org
James Webb Space Telescope Finds Stunning Evidence for Alternate Theory of Gravity - The Debrief

'It invites us to reconsider our notion of shadow': Laser beams can actually cast their own shadows, scientists discover - Livescience.com
Study of Scotland's last plague reveals humanity in face of 'Black Death' - Phys.org