Who is Clement Hal?
Latest Updates
Update at: May 1, 2026Hal Clement (Harry Clement Stubbs) – Public Profile
Birth: May 30, 1922, Somerville, New Jersey, United States.
Public name: Hal Clement
Occupation: American science fiction writer known for hard SF with rigorous scientific grounding.
Biography
Hal Clement is the pen name of Harry Clement Stubbs, an influential American author celebrated for his scientifically plausible approaches to broader SF concepts. Born in Somerville, New Jersey, Clement developed a reputation for crafting worlds and species with consistent physical laws that challenge characters and plot in meaningful ways. He contributed to the mid‑century wave of hard SF and influenced later generations of writers who value realism in speculative science.
Notable works
- Needle
- Iceworld
- Mission of Gravity
News and public activity
Hal Clement passed away in 2003. As a result, there are no contemporary projects or active official news profiles. Interest in his work persists through reissues, anthologies, and scholarly discussion within science fiction communities.
Public presence and social media
There are no official social media profiles for Hal Clement. Public information is mainly found on author databases, encyclopedic entries, and fan‑driven pages. Researchers and fans may encounter profiles on Wikipedia and various science fiction bibliography sites.
Legacy and influence
Clement’s reputation rests on his commitment to plausibility and physical consistency in alien settings, often exploring how physiology, environment, and physics shape life forms and societies. His work helped shape the hard SF tradition and inspired authors to foreground science as a core driver of story and worldbuilding.
Notes
For readers seeking verified bibliographies, author bibliographies and SF history resources can provide comprehensive lists of Clement’s published stories and collections.
Which Raj Yogas are in Clement Hal's birth chart?
3 FOUNDClement Hal's chart shows 2 Raj Yogas and 1 challenging combination, including Ruchaka Yoga, Rajju Yoga.
Which dasha periods did Clement Hal live through?
VIMSHOTTARIVimshottari dasha periods recorded for Clement Hal, in order.
What do Clement Hal's numerology numbers say?
Clement Hal's core numbers are Destiny 5, Soul Urge 22, Personality 3, Kabbalah Number 3, Kabbalah Number 33.
Chaldean Destiny 5 indicates dynamic progress through change and versatility. It supports travel, sales, communication roles, and fast adaptation.
Chaldean Soul 22 desires to build something lasting. It seeks disciplined execution of a big vision with practical steps.
Chaldean Personality 3 appears expressive, social, and creative. Others often see charm, optimism, and communication skills.
Kabbalah Number 3 reflects an inner spiritual code of expression and creativity. It supports communication, inspiration, and joyful manifestation.
Kabbalah Number 33 reflects a master-teaching spiritual code. It supports healing, compassion, and upliftment through service leadership.
Life Events & Planetary Transits
Key events mapped against the active Dasha and planetary transits at the time.











